396a7859f4
after making test(1) a sh(1) builtin; sh(1) coredumps when you run something like this: sh -c 'test ! `true 1`' The cause is that the test(1) code totally depends on the presence of two extra cells at the end of argv that are filled with NULL's. The reason why the bug hasn't been exposed would be because the C startup code kindly prepares argv with some extra zeroed cells for a program. I know this is not the best fix, but since there are argv++'s without boundary checks everywhere, I'd rather patch it up like this (preparing a copy of argv with extra NULL's) for the moment. MFC after: 3 days
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