completion: find out supported merge strategies correctly

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 158b91284147d50a24d6dadaa7c5085cf0b7cb55..a31004088a969a231972267333ee1cafa1d47233 100755 (executable)
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -271,15 +271,17 @@ __git_merge_strategies ()
                echo "$__git_merge_strategylist"
                return
        fi
-       sed -n "/^all_strategies='/{
-               s/^all_strategies='//
-               s/'//
+       git merge -s help 2>&1 |
+       sed -n -e '/[Aa]vailable strategies are: /,/^$/{
+               s/\.$//
+               s/.*://
+               s/^[    ]*//
+               s/[     ]*$//
                p
-               q
-               }" "$(git --exec-path)/git-merge"
+       }'
 }
 __git_merge_strategylist=
-__git_merge_strategylist="$(__git_merge_strategies 2>/dev/null)"
+__git_merge_strategylist=$(__git_merge_strategies 2>/dev/null)
 
 __git_complete_file ()
 {