Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Install /usr/libexec/makewhatis.local and /usr/libexec/catman.local.
This has slipped through the cracks of The Great Perl Script Rewrite.

Repocopied by: joe

Style.

Add C rewrites of catman and makewhatis. These aren't quite as
the submitter supplied them, as I did some WARNS=n fixups (mostly
const-ification).

Submitted by: John Rochester <john@jrochester.org>