gitweb: fix whitespace in config_to_multi (indent with tab)

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 28bb8c3..6256641 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -1511,7 +1511,7 @@
 sub config_to_multi {
 	my $val = shift;
 
-       return ref($val) ? $val : (defined($val) ? [ $val ] : []);
+	return ref($val) ? $val : (defined($val) ? [ $val ] : []);
 }
 
 sub git_get_project_config {