xbps-pkgdb.8: explain exactly what checks are executed currently.
xbps-pkgdb.8: explain exactly what checks are executed currently.

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