Added mts.conf.5 page per Neil W Rickert <rickert+nmh@cs.niu.edu>'s report:
[mmh] / mts / sendmail /
drwxr-xr-x   ..
-rw-r--r-- 1677 Makefile.in
-rw-r--r-- 2673 hosts.c
-rw-r--r-- 15695 sendmail.c