Fixed Spaces showing as Zero on 7-Segment Display

Author: Melissa LeBlanc-Williams

adafruit_ht16k33/segments.py

@@ -250,7 +250,8 @@ def _put(self, char, index=0):
         elif char in '0123456789':
             character = ord(char) - 48
         elif char == ' ':
-            character = 0x00
+            self._set_buffer(index, 0x00)
+            return
         elif char == ':':
             self._set_buffer(4, 0x02)
             return