Shutdown test slightly improved
Shutdown test slightly improved

Signed-off-by: Martin Sustrik <4dd6061be1198639e8b05ce4fd5ead7a0dcaa0f4@250bpm.com>

featherweight/ftw-kernel-nanomsg,kaostao/nanomsg,nirs/nanomsg,cosin2008/nanomsg.NET,nirs/nanomsg,thisco-de/nanomsg,gdamore/mamomsg,zerotacg/nanomsg,simplestbest/nanomsg,kaostao/nanomsg,krafczyk/nanomsg,gdamore/mamomsg,kaostao/nanomsg,wirebirdlabs/featherweight-nanomsg,smithed/nanomsg,linearregression/nanomsg,snikulov/nanomsg,pch957/nanomsg,pakozm/nanomsg,ttyangf/nanomsg,krafczyk/nanomsg,pch957/nanomsg,tempbottle/nanomsg,ttyangf/nanomsg,wfxiang08/nanomsg,modulexcite/nanomsg,snikulov/nanomsg,reqshark/nanomsg,zerotacg/nanomsg,potatogim/nanomsg,modulexcite/nanomsg,wirebirdlabs/featherweight-nanomsg,potatogim/nanomsg,tempbottle/nanomsg,nirs/nanomsg,TTimo/nanomsg,zerotacg/nanomsg,pch957/nanomsg,pakozm/nanomsg,yan97ao/nanomsg,ttyangf/nanomsg,TTimo/nanomsg,TTimo/nanomsg,TTimo/nanomsg,reqshark/nanomsg,tempbottle/nanomsg,thisco-de/nanomsg,simplestbest/nanomsg,reqshark/nanomsg,gdamore/mamomsg,JackDunaway/featherweight-nanomsg,pakozm/nanomsg,hyperfact/nanomsg,smithed/nanomsg,wirebirdlabs/featherweight-nanomsg,wfxiang08/nanomsg,krafczyk/nanomsg,ttyangf/nanomsg,featherweight/ftw-kernel-nanomsg,imp/nanomsg,hyperfact/nanomsg,imp/nanomsg,hyperfact/nanomsg,wfxiang08/nanomsg,JackDunaway/featherweight-nanomsg,cosin2008/nanomsg.NET,smithed/nanomsg,yan97ao/nanomsg,yan97ao/nanomsg,JackDunaway/featherweight-nanomsg,potatogim/nanomsg,modulexcite/nanomsg,kaostao/nanomsg,linearregression/nanomsg,imp/nanomsg,simplestbest/nanomsg,smithed/nanomsg,cosin2008/nanomsg.NET,linearregression/nanomsg