Fix typo in poll wrapper

Patch from Ivo Raisr via BZ#330941


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13795 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/NEWS b/NEWS
index 44b1887..86c6d86 100644
--- a/NEWS
+++ b/NEWS
@@ -48,6 +48,7 @@
 329612  Incorrect handling of AT_BASE for image execution 
 330459  --track-fds=yes doesn't track eventfds
 330469  Add clock_adjtime syscall support
+330941  Typo in PRE(poll) syscall wrapper
 
 Release 3.9.0 (31 October 2013)
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~