alpm_logaction: check logfile before opening

valgrind does not like calling open(NULL, ...).  This also makes the
return value 0 if logfile has not been set.

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>

0 files changed, 0 insertions, 0 deletions