Working patch for iostat

[Thomas Nikolajsen]

On Sat, 26 Feb 2011 01:04:03 -0500 Pratyush Kshirsagar wrote:
. .
>Cheers, here is the working patch/diff of iostat :) 
>I tried it on my system and the results were good.
>Please test and give me the feedback.

I tried it on master here, it compiles, but running it fails:
kern.cp_time sysctl doesn't exist in DragonFly,
we have kern.cputime, see test/pcpu for example,
if you would like to change kinfo..() to sysctl.

Also patch contains change to GENERIC, which isn't supposed to be there I guess.
(normally you will copyGENERIC to other file and change that)

An update for manual page would also be nice;
maybe with a description of what patch tries to achieve.

 -thomas