Fix typos (in variable name and in error message)

psiphon/server/server_test.go

@@ -677,13 +677,13 @@ func makeTunneledNTPRequestAttempt(
 			return
 		}
 
-		updgwProtocolMessage, err := readUdpgwMessage(socksTCPConn, buffer)
+		udpgwProtocolMessage, err := readUdpgwMessage(socksTCPConn, buffer)
 		if err != nil {
 			t.Logf("readUdpgwMessage for %s failed: %s", destination, err)
 			return
 		}
 
-		_, err = serverUDPConn.WriteToUDP(updgwProtocolMessage.packet, clientAddr)
+		_, err = serverUDPConn.WriteToUDP(udpgwProtocolMessage.packet, clientAddr)
 		if err != nil {
 			t.Logf("serverUDPConn.Write for %s failed: %s", destination, err)
 			return

psiphon/server/udp.go

@@ -120,7 +120,7 @@ func (mux *udpPortForwardMultiplexer) run() {
 		message, err := readUdpgwMessage(mux.sshChannel, buffer)
 		if err != nil {
 			if err != io.EOF {
-				log.WithContextFields(LogFields{"error": err}).Warning("readUpdgwMessage failed")
+				log.WithContextFields(LogFields{"error": err}).Warning("readUdpgwMessage failed")
 			}
 			break
 		}