sendmsg on FreeBSD can return ENOTCONN
sendmsg on FreeBSD can return ENOTCONN

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

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