Pull WARNS6 into usr.bin/Makefile.inc.Most of usr.bin is marked as WARNS6, so add exceptions in individualMakefiles. Also, remove any warning flags from CFLAGS in those Makefiles.
Use full month name for .Dd
Add some better mdoc markup.
Fix some groff warnings.
Add a man page for this program.
- Both <unistd.h> and <sys/types.h> can go - unnecessary- Use err() - no need to roll our own
Add the relpath utility which /usr/share/mk/bsd.port.mk will use tofigure out the relative port path so it can check for an override in/usr/dports/