Fix possible null pointer deref in check_arch

If we have a corrupted database, a package can come through without an arch,
causing the code to blow up when making strcmp() calls. It might even be
possible with perfectly valid database entries lacking an 'arch =' line.
This behavior was seen as at least one of the problems in FS#21668.

Ensure pkgarch is not null before doing anything further.

Signed-off-by: Dan McGee <dan@archlinux.org>

0 files changed, 0 insertions, 0 deletions