Build 2.3.0 release. closing if i press H
Hi,
New build crash if H pressed to see hash rate!
With 2.3.0 beta 2 all was OK.

===========================
 * VERSIONS:     XMRig/2.3.0 libuv/1.14.0 CUDA/8.0 MSVC/2015
 * CPU:          Intel(R) Xeon(R) CPU           W5580  @ 3.20GHz x64 -AES-NI
 * GPU #1:       GeForce GTX 460 @ 1680/1925 MHz 32x14 6x25 arch:21 SMX:7
 * ALGO:         cryptonight, donate=1%
 * POOL #1:      MY-PROXY-HERE
 * COMMANDS:     hashrate, health, pause, resume
[2017-08-29 12:37:21] use pool MY-PROXY-HERE
[2017-08-29 12:37:21] new job from MY-PROXY-HERE diff 1000
[2017-08-29 12:37:24] new job from MY-PROXY-HERE diff 1000
[2017-08-29 12:37:39] accepted (1/0) diff 1000 (197 ms)
[2017-08-29 12:37:41] GPU #1: 0/0 MHz 0W 70C FAN 50%
[2017-08-29 12:37:42] accepted (2/0) diff 1000 (170 ms)
[2017-08-29 12:37:44] accepted (3/0) diff 1000 (173 ms)
[2017-08-29 12:37:51] GPU #1: 0/0 MHz 0W 71C FAN 52%
[2017-08-29 12:37:52] new job from MY-PROXY-HERE diff 1500
[2017-08-29 12:37:54] accepted (4/0) diff 1000 (171 ms)
[2017-08-29 12:38:09] accepted (5/0) diff 1500 (199 ms)
=============================================
press H and miner just close.
