MAINTAINERS: add Joe as the get_maintainer.pl maintainer

Might as well be the get_maintainer maintainer...
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -3882,6 +3882,11 @@ L:	kvm@vger.kernel.org
 S:	Supported
 F:	drivers/uio/uio_pci_generic.c
 
+GET_MAINTAINER SCRIPT
+M:	Joe Perches <joe@perches.com>
+S:	Maintained
+F:	scripts/get_maintainer.pl
+
 GFS2 FILE SYSTEM
 M:	Steven Whitehouse <swhiteho@redhat.com>
 L:	cluster-devel@redhat.com