1) Base home directory is created if it does not already exist if

1)	Base home directory is created if it does not already exist if
	useradd -m or useradd -D -b are used.
2)	Hyphen allowed in username if not first character. Fix trivial
	bug in error fmt string.
3)	/etc/skeykeys updating changed to do 'inplace' update, commenting
	out a username rather than removing it completely.