ascli: fix NULL pointer dereference (#432)
ascli: fix NULL pointer dereference (#432)

The command `appstreamcli refresh-cache --cachepath /tmp/cache`
segfaults. In this code path, `ret` (initialized to `FALSE`) is not
updated when `as_pool_load` returns successfully and sets the `error`
pointer to NULL. Then the code tries to print `error->message`.
ximion/appstream,ximion/appstream,ximion/appstream,ximion/appstream