Add final newline

Author: asimell

exercisefiles/robotframework/robot/libraries/MetarReader.py

@@ -1,4 +1,4 @@
 class MetarReader(object):
-    
+
     def __init__(self):
-        pass
+        pass

exercisefiles/robotframework/robot/tests/test_metarreader.py

@@ -40,4 +40,4 @@ def test_get_remarks(self):
             self.reader.get_remarks("SITE3")
 
 if __name__ == '__main__':
-    unittest.main()
+    unittest.main()