[libc-commits] [libc] [libc] Ignore unknown characters after the fopen mode (PR #236968)

[Mike Lothian via libc-commits]

FireBurn wrote:

The failing libc-fullbuild check is `wait_status_test` at line 76, which is the `WIFCONTINUED` check, and this PR does not touch it. The child exits right after SIGCONT, so `waitpid(WCONTINUED)` can see the exit instead of the continue, and the test fails now and then. I measured about 4% of runs on my side. It was fixed on main by #237029, so a rebase onto main picks the fix up


https://github.com/llvm/llvm-project/pull/236968