If heirloom shell is in /usr/lib/heirloom/5bin/sh, use it to run tests.
[mmh] / docs / historical / mh-6.8.5 / miscellany / netnews / bin /
drwxr-xr-x   ..
-rwxr-xr-x 383 mh
-rwxr-xr-x 444 rnmail