add support for DPKG_ROOT (closes: #989567, #983425)
With both these commits, a chroot created with DPKG_ROOT is bit-by-bit identical to a chroot created the normal way as tested by this salsaci job:
Edited by Johannes Schauer Marin Rodrigues
With both these commits, a chroot created with DPKG_ROOT is bit-by-bit identical to a chroot created the normal way as tested by this salsaci job: