[Buildroot] [PATCH 0/5] github and patches updates in the manual (branch yem/manual)

[Buildroot] [PATCH 0/5] github and patches updates in the manual (branch yem/manual)

[Yann E. MORIN]

Hello All!

This series, intended to go in before -rc1:

  - clarifies the manual about what hashes are meaningful
  - clarifies the manual about when to add hashes for GitHub-hosted tarballs
  - removes hashes from two packages downloaded from GitHub
  - updates the patch naming convention

Regards,
Yann E. MORIN.


The following changes since commit a0b5052e9dec110903e1887e17bca314df228bb4:

  sunxi-boards: bump version (2014-11-01 23:28:06 +0100)

are available in the git repository at:

  git://git.busybox.net/~ymorin/git/buildroot yem/manual

for you to fetch changes up to 0b36850cf518809b83d4e21b81b0bc974c847199:

  docs/manual: document the new patch naming convention (2014-11-02 15:35:47 +0100)

----------------------------------------------------------------
Maxime Hadjinlian (3):
      manual: Add notes about GitHub and hashes
      opencv: Remove hash file
      libevent: Remove hash file

Yann E. MORIN (2):
      docs/manual: also document md5 hash
      docs/manual: document the new patch naming convention

 docs/manual/adding-packages-directory.txt | 40 +++++++++++++++++++++----------
 docs/manual/patch-policy.txt              | 21 ++++++++++------
 package/libevent/libevent.hash            |  2 --
 package/opencv/opencv.hash                |  3 ---
 4 files changed, 42 insertions(+), 24 deletions(-)
 delete mode 100644 package/libevent/libevent.hash
 delete mode 100644 package/opencv/opencv.hash

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH 1/5] docs/manual: also document md5 hash

[Yann E. MORIN]

We accept an md5 hash, but only if comming from upstream, and id
also accompanied with a stronger hash.

Thanks to Maxime for the interactive review! ;-)

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Cc: Samuel Martin <s.martin49@gmail.com>
---
 docs/manual/adding-packages-directory.txt | 33 ++++++++++++++++++++-----------
 1 file changed, 21 insertions(+), 12 deletions(-)

diff --git a/docs/manual/adding-packages-directory.txt b/docs/manual/adding-packages-directory.txt
index c145829..174e567 100644
--- a/docs/manual/adding-packages-directory.txt
+++ b/docs/manual/adding-packages-directory.txt
@@ -376,8 +376,9 @@ The format of this file is one line for each file for which to check the
 hash, each line being space-separated, with these three fields:
 
 * the type of hash, one of:
-** +sha1+, +sha224+, +sha256+, +sha384+, +sha512+
+** +md5+, +sha1+, +sha224+, +sha256+, +sha384+, +sha512+
 * the hash of the file:
+** for +md5+, 32 hexadecimal characters
 ** for +sha1+, 40 hexadecimal characters
 ** for +sha224+, 56 hexadecimal characters
 ** for +sha256+, 64 hexadecimal characters
@@ -391,28 +392,36 @@ lines are ignored.
 There can be more than one hash for a single file, each on its own line. In
 this case, all hashes must match.
 
-Ideally, the hashes stored in this file should match the hashes published by
-upstream, e.g. on their website, in the e-mail announcement... If upstream
-provides more than one type of hash (say, +sha1+ and +sha512+), then it is
-best to add all those hashes in the +.hash+ file. If upstream does not
-provide any hash, then compute at least one yourself, and mention this in a
-comment line above the hashes.
+*Note:* Ideally, the hashes stored in this file should match the hashes
+published by upstream, e.g. on their website, in the e-mail announcement...
+If upstream provides more than one type of hash (e.g. +sha1+ and +sha512+),
+then it is best to add all those hashes in the +.hash+ file. If upstream
+does not provide any hash, or only provides an +md5+ hash, then compute at
+least one strong hash yourself (like +sha1+ or +sha256+, but not +md5+),
+and mention this in a comment line above the hashes.
 
 *Note:* the number of spaces does not matter, so one can use spaces to
 properly align the different fields.
 
-The example below defines a +sha1+ and a +sha256+ published by upstream for
-the main +libfoo-1.2.3.tar.bz2+ tarball, plus two locally-computed hashes,
-a +sha256+ for a downloaded patch, and a +sha1+ for a downloaded binary blob:
+The example below defines:
+
+* a +sha1+ and a +sha256+ published by upstream for the main
+  +libfoo-1.2.3.tar.bz2+ tarball,
+* an +md5+ from upstream and a locally-computed +sha256+ for a downloaded
+  binary blob,
+* a +sha256+ from upstream for a downloaded patch.
 
 ----
 # Hashes from: http://www.foosoftware.org/download/libfoo-1.2.3.tar.bz2.{sha1,sha256}:
 sha1   486fb55c3efa71148fe07895fd713ea3a5ae343a                         libfoo-1.2.3.tar.bz2
 sha256 efc8103cc3bcb06bda6a781532d12701eb081ad83e8f90004b39ab81b65d4369 libfoo-1.2.3.tar.bz2
 
-# No upstream hashes for the following:
+# md5 from: http://www.foosoftware.org/download/libfoo-1.2.3.tar.bz2.md5, sha256 locally computed:
+md5    2d608f3c318c6b7557d551a5a09314f03452f1a1                         libfoo-data.bin
+sha256 01ba4719c80b6fe911b091a7c05124b64eeece964e09c058ef8f9805daca546b libfoo-data.bin
+
+# Upstream has no hash, so locally computed:
 sha256 ff52101fb90bbfc3fe9475e425688c660f46216d7e751c4bbdb1dc85cdccacb9 libfoo-fix-blabla.patch
-sha1   2d608f3c318c6b7557d551a5a09314f03452f1a1                         libfoo-data.bin
 ----
 
 If the +.hash+ file is present, and it contains one or more hashes for a
-- 
1.9.1

[Buildroot] [PATCH 2/5] manual: Add notes about GitHub and hashes

[Yann E. MORIN]

From: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>

We can't take hashes from GitHub, unless the tarball has been uploaded by
the maintainer, otherwise it is generated and may change over time,
which renders hash files, useless.

Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

---
v2-> v3 (YEM):
  - move the block down, to be with with the other "note"
  - add reference to the GitHub helper
  - small gramatical fix s/automated/automatically/

v1 -> v2:
  - Add changes as requested by Yann E. Morin
  - Reword the comment on released tarball
---
 docs/manual/adding-packages-directory.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/docs/manual/adding-packages-directory.txt b/docs/manual/adding-packages-directory.txt
index 174e567..8d9c3b9 100644
--- a/docs/manual/adding-packages-directory.txt
+++ b/docs/manual/adding-packages-directory.txt
@@ -400,6 +400,13 @@ does not provide any hash, or only provides an +md5+ hash, then compute at
 least one strong hash yourself (like +sha1+ or +sha256+, but not +md5+),
 and mention this in a comment line above the hashes.
 
+*Note:* If +libfoo+ is from GitHub (see xref:github-download-url[] for
+details), we can only accept +.hash+ file if the package is a released
+(e.g. uploaded by the maintainer) tarball. Otherwise, the automatically
+generated tarball may change over time, and thus its hashes may be
+different each time it is downloaded, making the +.hash+ file irrelevant
+for that tarball.
+
 *Note:* the number of spaces does not matter, so one can use spaces to
 properly align the different fields.
 
-- 
1.9.1

[Buildroot] [PATCH 3/5] opencv: Remove hash file

[Yann E. MORIN]

From: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>

Since the tarball we download is generated from GitHub, there's no
saying that the tarball won't differ in a month from now.
So the hash has no value there.

Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

---
YEM:
  - remove comment about changes to the manual, done in a previous
    patch;
  - after some testing, it seems tarballs are cached for only about 15
    minutes, which is largely enough to easily trigger a false hash
    mismatch.
---
 package/opencv/opencv.hash | 3 ---
 1 file changed, 3 deletions(-)
 delete mode 100644 package/opencv/opencv.hash

diff --git a/package/opencv/opencv.hash b/package/opencv/opencv.hash
deleted file mode 100644
index fc3b750..0000000
--- a/package/opencv/opencv.hash
+++ /dev/null
@@ -1,3 +0,0 @@
-# From https://github.com/itseez/opencv/archive/2.4.10/
-md5	3346a59310d788d3845f4fd6043a108a	opencv-2.4.10.tar.gz
-sha1	a0c2d5944364fc4f26b6160b33c03082b1fa08c1	opencv-2.4.10.tar.gz
-- 
1.9.1

[Buildroot] [PATCH 3/5] opencv: Remove hash file

[Thomas Petazzoni]

Dear Yann E. MORIN,

On Sun,  2 Nov 2014 16:25:55 +0100, Yann E. MORIN wrote:
> From: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
> 
> Since the tarball we download is generated from GitHub, there's no
> saying that the tarball won't differ in a month from now.
> So the hash has no value there.
> 
> Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
> Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

Applied, thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

[Buildroot] [PATCH 4/5] libevent: Remove hash file

[Yann E. MORIN]

From: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>

Since the tarball we download is generated from GitHub, there's no
saying that the tarball won't differ in a month from now.
So the hash has no value there.

Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

---
YEM:
  - remove comment about changes to the manual, done in a previous
    patch;
  - after some testing, it seems tarballs are cached for only about 15
    minutes, which is largely enough to easily trigger a false hash
    mismatch.
---
 package/libevent/libevent.hash | 2 --
 1 file changed, 2 deletions(-)
 delete mode 100644 package/libevent/libevent.hash

diff --git a/package/libevent/libevent.hash b/package/libevent/libevent.hash
deleted file mode 100644
index efa0dc5..0000000
--- a/package/libevent/libevent.hash
+++ /dev/null
@@ -1,2 +0,0 @@
-# Locally calculated after checking pgp signature
-sha256	22a530a8a5ba1cb9c080cba033206b17dacd21437762155c6d30ee6469f574f5	libevent-2.0.21-stable.tar.gz
-- 
1.9.1

[Buildroot] [PATCH 4/5] libevent: Remove hash file

[Thomas Petazzoni]

Dear Yann E. MORIN,

On Sun,  2 Nov 2014 16:25:56 +0100, Yann E. MORIN wrote:
> From: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
> 
> Since the tarball we download is generated from GitHub, there's no
> saying that the tarball won't differ in a month from now.
> So the hash has no value there.
> 
> Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
> Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

This patch was marked as Rejected because we've switched back to using
a tarball from sourceforge for libevent instead of github.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

[Buildroot] [PATCH 5/5] docs/manual: document the new patch naming convention

[Yann E. MORIN]

To ease generating patches, we now use a naming convention that is in
line with what git-format-patch does, that is:
  - do not prefix patches with the package name
  - prefix patches with a 4-digit mber
  - start numbering at 0001

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Peter Korsgaard <jacmet@uclibc.org>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Thomas De Schampheleire <patrickdepinguin@gmail.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Samuel Martin <s.martin49@gmail.com>
Acked-by: Samuel Martin <s.martin49@gmail.com>

---
Changes v1 -> v2:
  - reword slightly  (Thomas DS)
---
 docs/manual/patch-policy.txt | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/docs/manual/patch-policy.txt b/docs/manual/patch-policy.txt
index 745f58d..6e27e71 100644
--- a/docs/manual/patch-policy.txt
+++ b/docs/manual/patch-policy.txt
@@ -31,16 +31,23 @@ Most patches are provided within Buildroot, in the package
 directory; these typically aim to fix cross-compilation, libc support,
 or other such issues.
 
-These patch files should be named +<packagename>-<number>-<description>.patch+.
-
-A +series+ file, as used by +quilt+, may also be added in the
-package directory. In that case, the +series+ file defines the patch
-application order.
+These patch files should be named +<number>-<description>.patch+.
 
 .Notes
 - The patch files coming with Buildroot should not contain any package version
-reference in their filename.
-- The field +<number>+ in the patch file name refers to the 'apply order'.
+  reference in their filename.
+- The field +<number>+ in the patch file name refers to the 'apply order',
+  and shall start at 1; It is preferred to pad the number with zeros up to 4
+  digits, like 'git-format-patch' does. E.g.: +0001-foobar-the-buz.patch+
+- Previously, it was mandatory for patches to be prefixed with the name of
+  the package, like +<package>-<number>-<description>.patch+, but that is
+  no longer the case. Existing packages will be fixed as time passes. 'Do
+  not prefix patches with the package name.'
+- Previously, a +series+ file, as used by +quilt+, could also be added in
+  the package directory. In that case, the +series+ file defines the patch
+  application order. This is deprecated, and will be removed in the future.
+  'Do not use a series file.'
+
 
 ==== Global patch directory
 
-- 
1.9.1

[Buildroot] [PATCH] lttng-tools: Update hash file after silent update

[Maxime Hadjinlian]

The tarballs for 2.5.1 have been silently updated by upstream at
'2014-10-31 15:35'.

This fixes:
http://autobuild.buildroot.net/results/a2a/a2ab3c526a3f67371524e1b076512cf1f8058c72/build-end.log

Signed-off-by Maxime Hadjinlian <maxime.hadjinlia@gmail.com>
Cc: Romain Naour <romain.naour@openwide.fr>
---
Thanks to Romain Naour for pointing this out on IRC.
---
 package/lttng-tools/lttng-tools.hash | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/lttng-tools/lttng-tools.hash b/package/lttng-tools/lttng-tools.hash
index c0c4bc1..92a4401 100644
--- a/package/lttng-tools/lttng-tools.hash
+++ b/package/lttng-tools/lttng-tools.hash
@@ -1,2 +1,2 @@
 # Locally generated
-sha256  3c6511e6ceef975cfe36b5644ab9bfaa6780c71b1d2551718279823924429739  lttng-tools-2.5.1.tar.bz2
+sha256  1084ce1fac0030cb5e0e3e117002444ceb9f94d6a15a6cce6607c480eca9b21b  lttng-tools-2.5.1.tar.bz2
-- 
2.1.1

[Buildroot] [PATCH] lttng-tools: Update hash file after silent update

[Romain Naour]

Hi Maxime,

Le 02/11/2014 17:24, Maxime Hadjinlian a ?crit :
> The tarballs for 2.5.1 have been silently updated by upstream at
> '2014-10-31 15:35'.
> 
> This fixes:
> http://autobuild.buildroot.net/results/a2a/a2ab3c526a3f67371524e1b076512cf1f8058c72/build-end.log
> 
> Signed-off-by Maxime Hadjinlian <maxime.hadjinlia@gmail.com>
> Cc: Romain Naour <romain.naour@openwide.fr>
> ---
> Thanks to Romain Naour for pointing this out on IRC.
> ---
>  package/lttng-tools/lttng-tools.hash | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/package/lttng-tools/lttng-tools.hash b/package/lttng-tools/lttng-tools.hash
> index c0c4bc1..92a4401 100644
> --- a/package/lttng-tools/lttng-tools.hash
> +++ b/package/lttng-tools/lttng-tools.hash
> @@ -1,2 +1,2 @@
>  # Locally generated
> -sha256  3c6511e6ceef975cfe36b5644ab9bfaa6780c71b1d2551718279823924429739  lttng-tools-2.5.1.tar.bz2
> +sha256  1084ce1fac0030cb5e0e3e117002444ceb9f94d6a15a6cce6607c480eca9b21b  lttng-tools-2.5.1.tar.bz2
> 

Manually downloaded tarball, and manually checked the hash.

Reviewed-by: Romain Naour <romain.naour@openwide.fr>

Best regards,
Romain Naour

[Buildroot] [PATCH] lttng-tools: Update hash file after silent update

[Yann E. MORIN]

Maxime, All,

On 2014-11-02 17:24 +0100, Maxime Hadjinlian spake thusly:
> The tarballs for 2.5.1 have been silently updated by upstream at
> '2014-10-31 15:35'.

Grr... :-(

However, the other LTTng archives still have the same hashes... :-(

> This fixes:
> http://autobuild.buildroot.net/results/a2a/a2ab3c526a3f67371524e1b076512cf1f8058c72/build-end.log
> 
> Signed-off-by Maxime Hadjinlian <maxime.hadjinlia@gmail.com>
> Cc: Romain Naour <romain.naour@openwide.fr>

Manualy downloaded, and manually checked the hash.

However, I NAK this change, because the archive has changed a *lot*:
    http://code.bulix.org/z2c8r0-87331?raw

Also, notice this file:
    lttng-tools-2.5.1/tests/regression/tools/save-load/ /tmp/tmp.eAJ1f0oCZE/test-42/save-42.lttng

Yes, that's a single filename with a space in it (but the new archives
removes it, although it still is in the repository).

So, Maxime and Romain, please talk to upstream about this issue.

In the meantime, I prefer we do *not* update the hash until we have a
sensible answer from the LTTng folks, or at least until later in the
release cycle.

Regards,
Yann E. MORIN.

> ---
> Thanks to Romain Naour for pointing this out on IRC.
> ---
>  package/lttng-tools/lttng-tools.hash | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/package/lttng-tools/lttng-tools.hash b/package/lttng-tools/lttng-tools.hash
> index c0c4bc1..92a4401 100644
> --- a/package/lttng-tools/lttng-tools.hash
> +++ b/package/lttng-tools/lttng-tools.hash
> @@ -1,2 +1,2 @@
>  # Locally generated
> -sha256  3c6511e6ceef975cfe36b5644ab9bfaa6780c71b1d2551718279823924429739  lttng-tools-2.5.1.tar.bz2
> +sha256  1084ce1fac0030cb5e0e3e117002444ceb9f94d6a15a6cce6607c480eca9b21b  lttng-tools-2.5.1.tar.bz2
> -- 
> 2.1.1
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH] lttng-tools: Update hash file after silent update

[Maxime Hadjinlian]

Hi Yann, Romain, all

On Sun, Nov 2, 2014 at 6:20 PM, Yann E. MORIN <yann.morin.1998@free.fr> wrote:
> Maxime, All,
>
> On 2014-11-02 17:24 +0100, Maxime Hadjinlian spake thusly:
>> The tarballs for 2.5.1 have been silently updated by upstream at
>> '2014-10-31 15:35'.
>
> Grr... :-(
>
> However, the other LTTng archives still have the same hashes... :-(
>
>> This fixes:
>> http://autobuild.buildroot.net/results/a2a/a2ab3c526a3f67371524e1b076512cf1f8058c72/build-end.log
>>
>> Signed-off-by Maxime Hadjinlian <maxime.hadjinlia@gmail.com>
>> Cc: Romain Naour <romain.naour@openwide.fr>
>
> Manualy downloaded, and manually checked the hash.
>
> However, I NAK this change, because the archive has changed a *lot*:
>     http://code.bulix.org/z2c8r0-87331?raw
>
> Also, notice this file:
>     lttng-tools-2.5.1/tests/regression/tools/save-load/ /tmp/tmp.eAJ1f0oCZE/test-42/save-42.lttng
>
> Yes, that's a single filename with a space in it (but the new archives
> removes it, although it still is in the repository).
>
> So, Maxime and Romain, please talk to upstream about this issue.
>
> In the meantime, I prefer we do *not* update the hash until we have a
> sensible answer from the LTTng folks, or at least until later in the
> release cycle.
Indeed do not apply this patch, it seems the lttng folks have messed
up their releases, I'll report a bug.
Thanks Yann for finding this.
>
> Regards,
> Yann E. MORIN.
>
>> ---
>> Thanks to Romain Naour for pointing this out on IRC.
>> ---
>>  package/lttng-tools/lttng-tools.hash | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/package/lttng-tools/lttng-tools.hash b/package/lttng-tools/lttng-tools.hash
>> index c0c4bc1..92a4401 100644
>> --- a/package/lttng-tools/lttng-tools.hash
>> +++ b/package/lttng-tools/lttng-tools.hash
>> @@ -1,2 +1,2 @@
>>  # Locally generated
>> -sha256  3c6511e6ceef975cfe36b5644ab9bfaa6780c71b1d2551718279823924429739  lttng-tools-2.5.1.tar.bz2
>> +sha256  1084ce1fac0030cb5e0e3e117002444ceb9f94d6a15a6cce6607c480eca9b21b  lttng-tools-2.5.1.tar.bz2
>> --
>> 2.1.1
>>
>> _______________________________________________
>> buildroot mailing list
>> buildroot at busybox.net
>> http://lists.busybox.net/mailman/listinfo/buildroot
>
> --
> .-----------------.--------------------.------------------.--------------------.
> |  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
> | +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
> | +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
> | http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
> '------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH] lttng-tools: Update hash file after silent update

[Peter Korsgaard]

>>>>> "Maxime" == Maxime Hadjinlian <maxime.hadjinlian@gmail.com> writes:

 > The tarballs for 2.5.1 have been silently updated by upstream at
 > '2014-10-31 15:35'.

 > This fixes:
 > http://autobuild.buildroot.net/results/a2a/a2ab3c526a3f67371524e1b076512cf1f8058c72/build-end.log

 > Signed-off-by Maxime Hadjinlian <maxime.hadjinlia@gmail.com>
 > Cc: Romain Naour <romain.naour@openwide.fr>

Sorry, for some reason I missed this patch and did the modification
myself.

-- 
Bye, Peter Korsgaard