In exec.c, we already win a little by doing a single call of
pathexec_run instead of having each branch do their own


 This change is invalid. When you exit the if (dash) block, the
dashed[] array goes out of scope, and is deallocated; but argv[0] is
still pointing to it. The duplication of the call to pathexec_run()
is necessary.

--
 Laurent

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