dies in an unexpected way (e.g. segfault).
On the other hand, don't use test_must_fail for running regular
- platform commands; just use '! cmd'.
+ platform commands; just use '! cmd'. We are not in the business
+ of verifying that the world given to us sanely works.
- use perl without spelling it as "$PERL_PATH". This is to help our
friends on Windows where the platform Perl often adds CR before