xbps-query/list: pass correct length to strlcat to truncate results.
xbps-query/list: pass correct length to strlcat to truncate results.

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