Simplify xbps_repository_pool_find_pkg internals for best match case.
Simplify xbps_repository_pool_find_pkg internals for best match case.

datenwolf/xbps,ebfe/xbps,stpx/xbps,ebfe/xbps,datenwolf/xbps,datenwolf/xbps,stpx/xbps,ebfe/xbps,stpx/xbps