libxbps: strip redundant dir separators returned by xbps_pkg_index_plist().
libxbps: strip redundant dir separators returned by xbps_pkg_index_plist().

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