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)

Fix an "unused variable" error that gets us all the way to WARNS=6

Let bsd.prog.mk set SRCS and MAN to their default values.

Remove unnecessary SRCS= where could be guessed directly by our
bsd.*.mk infrasture.

Obtained from: ru

A cooperative effort...

1. Update the code to the latest from NetBSD, which includes:
* A new command line option to suppress stat(2) errors
* Output is now done via stdio
* Fixes for bitwise OR'ing of letters

2. Andrew from NetBSD merged in our own Johan's readlink patches.

3. Andrew also merged in some brucifications.

I made some small contributions to the header cleanup, and tried
to generally improve the overall style(9)'ishness. I also documented
the new -q option and added the *LINKS to the Makefile.

All responsibility for mistakes in merging the contributions
from the above is mine.

Obtained from: Andrew Brown <atatat@NetBSD.org>, bde, johan

This commit was generated by cvs2svn to compensate for changes in r97952,
which included commits to RCS files with non-trunk default branches.

Virgin import of NetBSD's stat(1)