xbps-rindex/index-clean: fix a resouce leak (CID #98689).
xbps-rindex/index-clean: fix a resouce leak (CID #98689).

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