[google/integration] Add missing test failure. (issue5687075)

[Ollie Wild]

The latest Crosstool builds reveal one new test failure (and fix several
others).  This patch adds the missing failure to x86_64-unknown-linux-gnu.xfail.

2012-02-21  Ollie Wild  <aaw@google.com>

	* testsuite-management/x86_64-unknown-linux-gnu.xfail: Add
	gcc.c-torture/execute/vshuf-v16qi.c failure.

diff --git a/contrib/testsuite-management/x86_64-unknown-linux-gnu.xfail b/contrib/testsuite-management/x86_64-unknown-linux-gnu.xfail
index 2a5e01b..1c7196d 100644
--- a/contrib/testsuite-management/x86_64-unknown-linux-gnu.xfail
+++ b/contrib/testsuite-management/x86_64-unknown-linux-gnu.xfail
@@ -20,6 +20,7 @@ XPASS: gcc.dg/unroll_4.c (test for excess errors)
 FAIL: libmudflap.c++/pass55-frag.cxx ( -O) execution test
 FAIL: gcc.c-torture/execute/vshuf-v2di.c execution,  -Os
 FAIL: gcc.c-torture/execute/vshuf-v8hi.c execution,  -Os
+FAIL: gcc.c-torture/execute/vshuf-v16qi.c execution,  -Os
 FAIL: gcc.target/i386/pr27827.c scan-assembler fmul[ \t]*%st
 
 # Failures in libitm.

--
This patch is available for review at http://codereview.appspot.com/5687075