/etc/texmf/dvips/config/config.mirrorprint is in texlive-base 2009-15.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | % config.mirrorprint: Thomas Esser, 1998, public domain.
% Usage: dvips -Pmirrorprint ...
% Purpose: print in a mirrored way
h mirr.hd
|