usage: /usr/bin/grolj4 [-l] [-c n] [-d [n]] [-F dir] [-p paper-format] [-w n] [file ...]
usage: /usr/bin/grolj4 {-v | --version}
usage: /usr/bin/grolj4 --help

Translate the output of troff(1) into PCL 5/LaserJet 4 format.  See
the grolj4(1) manual page.