[PATCH] filter-branch tests/docs: avoid \t in sed regexes

[Thomas Rast <trast@student.ethz.ch>]

Using \t to represent a tab character is not portable beyond GNU sed
(see e.g. GNU sed's info pages).  Use printf to generate the tab
instead.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
---

 Adam Mercer wrote:
> > What OS is this?
> This was on Mac OS X 10.6. Where sed is BSD sed.

That's very funny however, since it means that nobody should ever have
had a successful test run on OS X with the preinstalled tools.  What
gives?


 Documentation/git-filter-branch.txt |    3 ++-
 t/t7003-filter-branch.sh            |    3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/Documentation/git-filter-branch.txt b/Documentation/git-filter-branch.txt
index 020028c..7e3ff8e 100644
--- a/Documentation/git-filter-branch.txt
+++ b/Documentation/git-filter-branch.txt
@@ -357,8 +357,9 @@ git filter-branch ... D..H --not C
 To move the whole tree into a subdirectory, or remove it from there:
 
 ---------------------------------------------------------------
+export TAB="$(printf '\t')"
 git filter-branch --index-filter \
-	'git ls-files -s | sed "s-\t\"*-&newsubdir/-" |
+	'git ls-files -s | sed "s-$TAB\"*-&newsubdir/-" |
 		GIT_INDEX_FILE=$GIT_INDEX_FILE.new \
 			git update-index --index-info &&
 	 mv $GIT_INDEX_FILE.new $GIT_INDEX_FILE' HEAD
diff --git a/t/t7003-filter-branch.sh b/t/t7003-filter-branch.sh
index 0da13a8..e90da6d 100755
--- a/t/t7003-filter-branch.sh
+++ b/t/t7003-filter-branch.sh
@@ -140,10 +140,11 @@ test_expect_success 'more setup' '
 	git merge branch
 '
 
+export TAB="$(printf '\t')"
 test_expect_success 'use index-filter to move into a subdirectory' '
 	git branch directorymoved &&
 	git filter-branch -f --index-filter \
-		 "git ls-files -s | sed \"s-\\t-&newsubdir/-\" |
+		 "git ls-files -s | sed \"s-$TAB-&newsubdir/-\" |
 	          GIT_INDEX_FILE=\$GIT_INDEX_FILE.new \
 			git update-index --index-info &&
 		  mv \"\$GIT_INDEX_FILE.new\" \"\$GIT_INDEX_FILE\"" directorymoved &&
-- 
1.7.2.1.342.g676a4