fix(os): popen handle leak and exit-code parse crash (B4, A8)#32
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aldum
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Jun 30, 2026
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B4: test_popen ran io.popen('echo') via pcall but never closed the returned handle, leaking one per call. Capture and close it. A8: runcmd_with_exit did result:find("(%d+)%s*$") - 1, which throws when the output has no trailing digits (nil - 1). Capture the position once, return failure if absent, and drop the redundant second find.