Added yet another suppression pattern.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@8663 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/glibc-2.X-drd.supp b/glibc-2.X-drd.supp
index 5c30516..88b833c 100644
--- a/glibc-2.X-drd.supp
+++ b/glibc-2.X-drd.supp
@@ -75,6 +75,17 @@
    obj:/lib*/libc-*
 }
 {
+   libc-exit-io-cleanup
+   drd:ConflictingAccess
+   obj:/lib*/libc-*.so
+   obj:/lib*/libc-*.so
+   obj:/lib*/libc-*.so
+   obj:/lib*/libc-*.so
+   obj:/lib*/libc-*.so
+   obj:/lib*/libc-*.so
+   fun:exit
+}
+{
    librt
    drd:ConflictingAccess
    fun:__librt_enable_asynccancel