Rename device loop variable

tools/pamusb-conf

@@ -191,8 +191,8 @@ def addDevice(options):
 
 	# Check that the id of the device to add is not already present in the configFile
 	for devices in devs:
-		for device in devices.getElementsByTagName("device"):
-			if device.getAttribute("id") == options['deviceName']:
+		for device_ in devices.getElementsByTagName("device"):
+			if device_.getAttribute("id") == options['deviceName']:
 				msg =  [ '\nWARNING: A device node already exits for new device \'%s\'.',
 						 '\nTo proceed re-run --add-device using a different name or remove the existing entry in %s.' ]
 				print('\n'.join(msg) % (options['deviceName'], options['configFile']))