Handle ENOSYS instread of EINVAL for some helgrind tests.

Some arches (s390x and ppc64) return ENOSYS instead of EINVAL for
undefined futex operations. Adjust the helgrind filter_stderr to
handle that case.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14375 a5019735-40e9-0310-863c-91ae7b9d1cf9
1 file changed