bin/51887: [PATCH] tests/lib/libpthread/t_fpu: various fixes

[yaneurabeya%gmail.com@localhost]

>Number:         51887
>Category:       bin
>Synopsis:       [PATCH] tests/lib/libpthread/t_fpu: various fixes
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jan 15 20:45:00 +0000 2017
>Originator:     Ngie Cooper
>Release:        7.0.2
>Organization:
>Environment:
n/a
>Description:
- sched_yield returns 0 on success/-1 on failure -- use ATF_REQUIRE_MSG and test for the == 0 invariant instead of using PTHREAD_REQUIRE.
- Check the results of pthread_create with PTHREAD_REQUIRE.
>How-To-Repeat:

>Fix: