With jb's rev 1.2 commit to usr.bin/lorder/lorder.sh we don't depend on
the 4.4BSD's ``nm -o'' behavior.
Previous to 4.3BSD-Reno, ``nm -o'' did not output the .o's filename on a
line by itself. The change occurred between CSRG's nm.c rev 4.8 (1987) and
rev 5.1 (in 1989), which was "new version from Hans Huebner hans@garp.mit.edu,
huebner@db0tui6.BITNET". The Binutils maintainers would rather cater to
a loud boisterous user of 4.3BSD VAXen which has its own native toolchain,
rather than a modern Unix with multiple orders of magnitude more users
and in which Binutils *is* the native toolchain.