update Roland McGrath's mail

roland@redhat.com bounces, change it to roland@hack.frob.com.

Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Roland McGrath <roland@hack.frob.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index 946a67e..1219dbae 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7203,7 +7203,7 @@
 F:	include/linux/ptp_cl*
 
 PTRACE SUPPORT
-M:	Roland McGrath <roland@redhat.com>
+M:	Roland McGrath <roland@hack.frob.com>
 M:	Oleg Nesterov <oleg@redhat.com>
 S:	Maintained
 F:	include/asm-generic/syscall.h