xbps_rpool_release: fix a double free (CID #98695).
xbps_rpool_release: fix a double free (CID #98695).

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