Fix the AC_PATH_PROG default when sendmail isn't found during build.
[mmh] / mts / smtp /
drwxr-xr-x   ..
-rw-r--r-- 1531 Makefile.in
-rw-r--r-- 2851 hosts.c
-rw-r--r-- 38792 smtp.c
-rw-r--r-- 7408 smtp.h