[Libguestfs] [PATCH for discussion] lib: update inspect_list_applications to return app_arch
Here's a partially implemented fix for RHBZ#859949. Seeing as this is
my first libguestfs patch, I'd like some other eyeballs on it to make
sure I've not done anything completely crazy.
If the rpm case looks ok, I'll update the deb and windows cases
if/where applicable.