Use the comment in the code to document the --exclude-existing

function to git-show-ref.
Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk>

---
While looking at the automatic tag following code in git-fetch.sh, I discovered that the --exclude-existing option to git-show-ref was undocumented (outside of the code anyway).
 Documentation/git-show-ref.txt |   16 ++++++++++++++++

 1 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/Documentation/git-show-ref.txt b/Documentation/git-show-ref.txt

index 5973a82..1e07c50 100644

--- a/Documentation/git-show-ref.txt

+++ b/Documentation/git-show-ref.txt

@@ -10,6 +10,7 @@ SYNOPSIS

 [verse]

 'git-show-ref' [-q|--quiet] [--verify] [-h|--head] [-d|--dereference]

 	     [-s|--hash] [--abbrev] [--tags] [--heads] [--] <pattern>...

+'git-show-ref' --exclude-existing[=pattern]
 DESCRIPTION

 -----------

@@ -19,6 +20,9 @@ commit IDs. Results can be filtered using a pattern and tags can be

 dereferenced into object IDs. Additionally, it can be used to test whether a

 particular ref exists.
+The --exclude-existing form is a filter that does the inverse, it shows the

+refs from stdin that don't exist in the local repository.

+

 Use of this utility is encouraged in favor of directly accessing files under

 in the `.git` directory.
@@ -61,6 +65,18 @@ OPTIONS

 	Do not print any results to stdout. When combined with '--verify' this

 	can be used to silently check if a reference exists.
+--exclude-existing, --exclude-existing=pattern::

+

+	Make git-show-ref act as a filter that reads refs from stdin of the

+	form "^(?:<anything>\s)?<refname>(?:\^\{\})?$" and performs the

+	following actions on each:

+	(1) strip "^{}" at the end of line if any;

+	(2) ignore if match is provided and does not head-match refname;

+	(3) warn if refname is not a well-formed refname and skip;

+	(4) ignore if refname is a ref that exists in the local repository;

+	(5) otherwise output the line.

+

+

 <pattern>::

...
[ message continues ]

Use the comment in the code to document the --exclude-existing

function to git-show-ref.
Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk>

---
This fixes an embarrassing copy/paste error with the previous version ...
 Documentation/git-show-ref.txt |   16 ++++++++++++++++

 1 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/Documentation/git-show-ref.txt b/Documentation/git-show-ref.txt

index 5973a82..2355aa5 100644

--- a/Documentation/git-show-ref.txt

+++ b/Documentation/git-show-ref.txt

@@ -10,6 +10,7 @@ SYNOPSIS

 [verse]

 'git-show-ref' [-q|--quiet] [--verify] [-h|--head] [-d|--dereference]

 	     [-s|--hash] [--abbrev] [--tags] [--heads] [--] <pattern>...

+'git-show-ref' --exclude-existing[=pattern]
 DESCRIPTION

 -----------

@@ -19,6 +20,9 @@ commit IDs. Results can be filtered using a pattern and tags can be

 dereferenced into object IDs. Additionally, it can be used to test whether a

 particular ref exists.
+The --exclude-existing form is a filter that does the inverse, it shows the

+refs from stdin that don't exist in the local repository.

+

 Use of this utility is encouraged in favor of directly accessing files under

 in the `.git` directory.
@@ -61,6 +65,18 @@ OPTIONS

 	Do not print any results to stdout. When combined with '--verify' this

 	can be used to silently check if a reference exists.
+--exclude-existing, --exclude-existing=pattern::

+

+	Make git-show-ref act as a filter that reads refs from stdin of the

+	form "^(?:<anything>\s)?<refname>(?:\^\{\})?$" and performs the

+	following actions on each:

+	(1) strip "^{}" at the end of line if any;

+	(2) ignore if pattern is provided and does not head-match refname;

+	(3) warn if refname is not a well-formed refname and skip;

+	(4) ignore if refname is a ref that exists in the local repository;

+	(5) otherwise output the line.

+

+

 <pattern>::
 	Show references matching one or more patterns.

--

1.5.1
-

Thanks.
-