The NULL sentinel argument to the execl*() family of calls must be
cast to (char *), as otherwise:
- platforms where NULL is just 0 (not (void *)) would pass an int
- (admittedly esoteric) platforms where NULL is (void *)0 and (void *)
and (char *) have different memory layouts would pass the wrong kind
of pointer
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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