[PATCH] git-completion.bash: prevent 'git help' from searching for git repository

On 'git <TAB><TAB>' the bash completion runs 'git help -a'.  Since
'git help' actually doesn't need to be run inside a git repository,
this commit uses the option --git-dir=/nonexistent to prevent it
from searching a git directory.  Unnecessary searching for a git
directory can be annoying in auto-mount environments.

The annoying behavior and suggested fix has been reported by Vincent
Danjean through
 http://bugs.debian.org/539273

Signed-off-by: Gerrit Pape <redacted>
---
 contrib/completion/git-completion.bash |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index bf688e1..d51854a 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash

@@ -500,7 +500,7 @@ __git_all_commands ()
 		return
 	fi
 	local i IFS=" "$'\n'
-	for i in $(git help -a|egrep '^ ')
+	for i in $(git --git-dir=/nonexistent help -a|egrep '^ ')
 	do
 		case $i in
 		*--*)             : helper pattern;;

-- 
1.6.0.3