Merge pull request #570 from hasheddan/docstring

Minor docstring fix on PublishRequest

nats.go

@@ -2613,7 +2613,7 @@ func (nc *Conn) PublishMsg(m *Msg) error {
 	return nc.publish(m.Subject, m.Reply, m.Data)
 }
 
-// PublishRequest will perform a Publish() excpecting a response on the
+// PublishRequest will perform a Publish() expecting a response on the
 // reply subject. Use Request() for automatically waiting for a response
 // inline.
 func (nc *Conn) PublishRequest(subj, reply string, data []byte) error {