NEWS: Add #331829 (Unexpected ioctl opcode sign extension)

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14234 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/NEWS b/NEWS
index 53f33fc..bdf4965 100644
--- a/NEWS
+++ b/NEWS
@@ -161,6 +161,7 @@
 331337  s390x WARNING: unhandled syscall: 326 (dup3)
 331380  Syscall param timer_create(evp) points to uninitialised byte(s)
 331476  Patch to handle ioctl 0x5422 on Linux (x86 and amd64)
+331829  Unexpected ioctl opcode sign extension
 331830  ppc64: WARNING: unhandled syscall: 96/97
 331839  drd/tests/sem_open specifies invalid semaphore name 
 331847  outcome of drd/tests/thread_name is nondeterministic