RFID: Add finishing <return> keypress for xdotool

rfid/rfid_keypresser.py

@@ -33,7 +33,7 @@ class printobserver(CardObserver):
 
 			try:
 				# Send UID to active window
-				subprocess.Popen(['xdotool', 'type', send])
+				subprocess.Popen(['xdotool', 'type', send+'\n'])
 			except OSError as e:
 				print str(e)