Just a heads up.

I've applied a patch to the mdoc man page macros (from Chris Badura -
thanks Chris!) that may result in slightly unsightly manpages unless
you re-install /usr/src/share/tmac (the program name might not be
printed in certain cases until you do).

Technical explanation: '.Nm' remembers the name of the program after
the first use, so you can just do
	.Nm
to get the program name.

However, if you wanted to follow the name with punctuation, you used
to have to do:
	.Nm programname :

This patch means that you can now do:
	.Nm "" :

Luke.