             if mavlink_parse_char(channel, byte, &message, &status) != 0 {
                 let messageDescription = self.descriptionForMavlinkMessage(message)
                 self.receivedMessageTextView.textStorage?.mutableString.appendString(messageDescription)
-    			self.receivedMessageTextView.needsDisplay = true
+                self.receivedMessageTextView.needsDisplay = true
             }
         }
     }

                self.clearTextView(self)
                
                // Configure port prior to opening
    			port.baudRate = 57600
    			port.numberOfStopBits = 1
    			port.parity = .None
                port.open()
                
                // Start a Mavlink session on the Pixhawk mini USB port
    			if let data = "mavlink start -d /dev/ttyACM0\n".dataUsingEncoding(NSUTF32LittleEndianStringEncoding) {
    				port.sendData(data)
    			}
            }
        }
    }

        var description: String
        switch message.msgid {
        case 0:
            var heartbeat = mavlink_heartbeat_t()
            mavlink_msg_heartbeat_decode(&message, &heartbeat);
            description = "HEARTBEAT mavlink_version: \(heartbeat.mavlink_version)"
        case 1:
            var sys_status = mavlink_sys_status_t()
