udf: change maintainer

I've tried to contact Ben Fennema a few times but without success.  Since I'm
currently probably closest to being an UDF maintainer, I guess it's fine to
also change the entry in MAINTAINERS.
Signed-off-by: NJan Kara <jack@suse.cz>
Cc: <bfennema@falcon.csc.calpoly.edu>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -3895,8 +3895,8 @@ L:	linux-scsi@vger.kernel.org
 S:	Maintained
 
 UDF FILESYSTEM
-P:	Ben Fennema
-M:	bfennema@falcon.csc.calpoly.edu
+P:	Jan Kara
+M:	jack@suse.cz
 W:	http://linux-udf.sourceforge.net
 S:	Maintained