gitweb: Faster return from git_get_preceding_references if possible

Return on first ref found when git_get_preceding_references
is called in scalar context

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 2 insertions, 3 deletions

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index b964302a5a..01452d2c74 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -789,16 +789,15 @@ sub git_get_preceding_references {
 		or return undef;
 
 	my @reflist;
-	my $firstref;
 
 	foreach my $commit (@commits) {
 		foreach my $ref (@{$refs->{$commit}}) {
-			$firstref = $ref unless $firstref;
+			return $ref unless wantarray;
 			push @reflist, $ref;
 		}
 	}
 
-	return wantarray ? @reflist : $firstref;
+	return @reflist;
 }
 
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