Fix run-pass/signal-exit-status to not trigger UB by writing to NULL. #36129
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…chton Fix run-pass/signal-exit-status to not trigger UB by writing to NULL. `run-pass/signal-exit-status` has had UB (NULL dereference) since it was introduced in rust-lang#10109. Fixes the test failure found by @camlorn while running under Windows Subsystem for Linux.
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run-pass/signal-exit-statushas had UB (NULL dereference) since it was introduced in #10109.Fixes the test failure found by @camlorn while running under Windows Subsystem for Linux.