fixes #385 leak in xrep code
fixes #385 leak in xrep code

imp/nanomsg,zerotacg/nanomsg,reqshark/nanomsg,reqshark/nanomsg,thisco-de/nanomsg,thisco-de/nanomsg,imp/nanomsg,yan97ao/nanomsg,wirebirdlabs/featherweight-nanomsg,JackDunaway/featherweight-nanomsg,snikulov/nanomsg,yan97ao/nanomsg,reqshark/nanomsg,yan97ao/nanomsg,featherweight/ftw-kernel-nanomsg,zerotacg/nanomsg,featherweight/ftw-kernel-nanomsg,JackDunaway/featherweight-nanomsg,JackDunaway/featherweight-nanomsg,snikulov/nanomsg,wirebirdlabs/featherweight-nanomsg,zerotacg/nanomsg,wirebirdlabs/featherweight-nanomsg,imp/nanomsg