MAINTAINERS: fix jfs tree location

JFS tree has been moved to github.
Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>

MAINTAINERS

@@ -7473,7 +7473,7 @@ JFS FILESYSTEM
 M:	Dave Kleikamp <shaggy@kernel.org>
 L:	jfs-discussion@lists.sourceforge.net
 W:	http://jfs.sourceforge.net/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6.git
+T:	git git://github.com/kleikamp/linux-shaggy.git
 S:	Maintained
 F:	Documentation/filesystems/jfs.txt
 F:	fs/jfs/