[PATCH v3 4/4] revisions.txt: remove ambibuity between <rev>:<path> and :<path>

[Denton Liu <liu.denton@gmail.com>]

From: Andreas Heiduk <asheiduk@gmail.com>

The revision ':README' is mentioned as an example for '<rev>:<path>'
but the explanation forwards to the ':<n>:<path>' syntax. At the same
time ':<n>:<path>' did not mark the '<n>:' as optional.

Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
---
Just for clarification, the correct procedure is to include my sign-off
on top of Andreas' when I'm forwarding patches, correct? If it's not,
Junio, please take my sign-off for me.

 Documentation/revisions.txt | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/Documentation/revisions.txt b/Documentation/revisions.txt
index a38ec7fb52..82c1e5754e 100644
--- a/Documentation/revisions.txt
+++ b/Documentation/revisions.txt
@@ -196,19 +196,16 @@ existing tag object.
   Depending on the given text, the shell's word splitting rules might
   require additional quoting.
 
-'<rev>:<path>', e.g. 'HEAD:README', ':README', 'master:./README'::
+'<rev>:<path>', e.g. 'HEAD:README', 'master:./README'::
   A suffix ':' followed by a path names the blob or tree
   at the given path in the tree-ish object named by the part
   before the colon.
-  ':path' (with an empty part before the colon)
-  is a special case of the syntax described next: content
-  recorded in the index at the given path.
   A path starting with './' or '../' is relative to the current working directory.
   The given path will be converted to be relative to the working tree's root directory.
   This is most useful to address a blob or tree from a commit or tree that has
   the same tree structure as the working tree.
 
-':<n>:<path>', e.g. ':0:README', ':README'::
+':[<n>:]<path>', e.g. ':0:README', ':README'::
   A colon, optionally followed by a stage number (0 to 3) and a
   colon, followed by a path, names a blob object in the
   index at the given path. A missing stage number (and the colon
-- 
2.21.0.1049.geb646f7864