xbps_find_*pkg_in_array: fix logic when transaction obj string matches.
xbps_find_*pkg_in_array: fix logic when transaction obj string matches.

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