Use MAX()/MIN() macros in world.

[Marcelo Araujo]

Hey,

As there is a kind of effort to clean up and do some cosmetic changes in
our source base.

I'm wondering if there is any objection to switch some codes to use MAX()
and MIN() macros from sys/param.h.

It will simplify code(readable), most of changes will be cosmetic changes
and not functional.

Thoughts?

Best,
-- 

-- 
Marcelo Araujo            (__)araujo at FreeBSD.org
\\\'',)http://www.FreeBSD.org <http://www.freebsd.org/>   \/  \ ^
Power To Server.         .\. /_)