gitweb: optimize git_get_last_activity.

Only return one line of output and we don't need the refname value.

Signed-off-by: Robert Fitzsimons <robfitz@273k.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 80c04b8..01e3a8a 100755 (executable)
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -1139,8 +1139,9 @@ sub git_get_last_activity {
 
        $git_dir = "$projectroot/$path";
        open($fd, "-|", git_cmd(), 'for-each-ref',
-            '--format=%(refname) %(committer)',
+            '--format=%(committer)',
             '--sort=-committerdate',
+            '--count=1',
             'refs/heads') or return;
        my $most_recent = <$fd>;
        close $fd or return;