git-mv: follow -k request even on failing renames

-k requests to keep running on an error condition.
Previously, git-mv stopped on failing renames even with -k.

There are some error conditions which are not checked in the
first phase of git-mv, eg. 'permission denied'. Still, option
-k should work.

Signed-off-by: Josef Weidendorfer <Josef.Weidendorfer@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>

git-mv.perl

@@ -151,6 +151,11 @@ ()
     if (!$opt_n) {
 	if (!rename($src,$dst)) {
 	    $bad = "renaming '$src' failed: $!";
+	    if ($opt_k) {
+		print "Warning: skipped: $bad\n";
+		$bad = "";
+		next;
+	    }
 	    last;
 	}
     }