fixes #748 Minor warning in windows build of IPC test
fixes #748 Minor warning in windows build of IPC test

reqshark/nanomsg,featherweight/ftw-kernel-nanomsg,snikulov/nanomsg,reqshark/nanomsg,reqshark/nanomsg,thisco-de/nanomsg,featherweight/ftw-kernel-nanomsg,thisco-de/nanomsg,snikulov/nanomsg