Make subdir regex more general

If a ports subdir is followed by either a flavor or a subpackage
name it will be delimited by a comma. So let the regex matching
the subdir include everything but not a comma.

autoupdate.pl

@@ -395,7 +395,7 @@ sub create_package_information {
 		if ($pkg =~ m/^
 				([a-z][a-z0-9]*)\/
 				([A-Za-z][\.A-Za-z0-9-+_]*)
-				((\/[a-z0-9._-]*)*)?
+				((\/[^,]*)*)?
 				$regex_subpkg
 				$regex_flavor/x) {
 			$category = $1;