Exit values for gpu-engine and gpu-memclock.

[skwurp]

As per the feature from this commit: 09423b7

Setting exit values for --gpu-engine and --gpu-memclock does not work unless you specifically set both augments.

So,

Augments	Result
--gpu-engine 1000:1117	Doesn't work
--gpu-memclock 1500:1375	Doesn't work
--gpu-engine 1000:1117 --gpu-memclock 1500:1375	Works!

I am using the 2014-02-04 windows build of your miner. I used GPU-Z to verify whether the clock values changed on exit.

[Kalroth]

I can confirm this issue. I'll look into it.