Log Message:
8.13.8nb2:

Don't install .cf files to /etc/mail directly at all; offer a message
about how to install them instead.  Don't create /etc/mail/statistics.
Create mqueue dirs at install via MAKE_DIRS.  Should fix PR pkg/20852.

Make sure SMRSH_CMDDIR gets to the compile defs.  Fixes PR pkg/34513.