lib/package_unpack.c: pass pkgver to xbps_pkg_exec_buffer() not pkgname.
lib/package_unpack.c: pass pkgver to xbps_pkg_exec_buffer() not pkgname.

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