Catch up with all the lint warnings since exit on warning was disabled.
Disable 'missing header declaration' and 'nested extern' warnings for now.

Use C89 definitions.
Remove use of __P

netbsd.org->NetBSD.org

Fix a serious symbol collision problem introduced when pw_scan() was added
to libc. Note, pw_scan() is NO LONGER exported from libc (it never should
have been, and we're just going to pretend like i

Fix a serious symbol collision problem introduced when pw_scan() was added
to libc. Note, pw_scan() is NO LONGER exported from libc (it never should
have been, and we're just going to pretend like it never was).

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