If heirloom shell is in /usr/lib/heirloom/5bin/sh, use it to run tests.

[mmh] / docs / historical / mh-6.8.5 / conf / local / MH.rome

bin     /usr/local
bboards on
bbhome  /usr/bboards
etc     /usr/local/lib/mh
mail    /usr/spool/mail
mandir  /usr/man
manuals local
chown   /etc/chown
editor  prompter
remove  mv -f
mf      off
mts     mmdf2/smtp
options BSD42 MHRC
options MHE WHATNOW NFS
options UCI RPOP POP BIND
pop     on
popbboards on
ldoptions -n -s
ldoptlibs -ldbm -lresolv
ccoptions -I/usr/src/bs/mh-6.6/h
curses -lcurses -ltermcap
ranlib  on