Removed stray semicolon

Author: Melissa LeBlanc-Williams

adafruit_featherwing/alphanum_featherwing.py

@@ -91,7 +91,7 @@ def _scroll_marquee(self, text, delay):
         for character in text:
             self._seg14x4.scroll()
             if character == '.':
-                self._seg14x4[3] = ' ';
+                self._seg14x4[3] = ' '
             self._seg14x4[3] = character
             sleep(delay)
             self._seg14x4.show()