xbps-pkgdb: when checking pkg files, ignore mtime with mutable files.
xbps-pkgdb: when checking pkg files, ignore mtime with mutable files.

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