contrib/git-svn: fix a harmless warning on rebuild (with old repos)

It's only for repositories that were imported with very early
versions of git-svn.  Unfortunately, some of those repos are out
in the wild already, so fix this warning.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/contrib/git-svn/git-svn.perl b/contrib/git-svn/git-svn.perl
index 43b50ec..cf233ef 100755 (executable)
--- a/contrib/git-svn/git-svn.perl
+++ b/contrib/git-svn/git-svn.perl
@@ -155,7 +155,7 @@ sub rebuild {
                # if we merged or otherwise started elsewhere, this is
                # how we break out of it
                next if (defined $SVN_UUID && ($uuid ne $SVN_UUID));
-               next if (defined $SVN_URL && ($url ne $SVN_URL));
+               next if (defined $SVN_URL && defined $url && ($url ne $SVN_URL));
 
                print "r$rev = $c\n";
                unless (defined $latest) {