correct email address of Manfred Spraul

I  tried to send the forcedeth maintainer an email, but it came back with:

"The mail address manfreds@colorfullife.com is not read anymore.
Please resent your mail to manfred@ instead of manfreds@."

This patch fixes this.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/ipc/util.c b/ipc/util.c
index 38b9a0a..8626219 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -7,7 +7,7 @@
  *            Occurs in several places in the IPC code.
  *            Chris Evans, <chris@ferret.lmh.ox.ac.uk>
  * Nov 1999 - ipc helper functions, unified SMP locking
- *	      Manfred Spraul <manfreds@colorfullife.com>
+ *	      Manfred Spraul <manfred@colorfullife.com>
  * Oct 2002 - One lock per IPC id. RCU ipc_free for lock-free grow_ary().
  *            Mingming Cao <cmm@us.ibm.com>
  */