os/signal: increase deliver time for signal testcase
    
    This increases the time to wait for signals to be delivered in the
    TestAtomicStop testcase. When running gccgo tests on ppc64 or ppc64le,
    there are intermittent failures in this test because the wait time is
    too small.
    
    Updates golang/go#29046
    
    Reviewed-on: https://go-review.googlesource.com/c/153879


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@267068 138bc75d-0d04-0410-961f-82ee72b054a4
2 files changed