Bug 376534. Improve the display of 8s in our missing-glyph-boxes. r=pavlov

gfx/thebes/src/gfxFontMissingGlyphs.cpp

@@ -83,11 +83,11 @@ static const PRUint16 glyphMicroFont[16] = {
             0, 0, 1,
             0, 0, 1,
             0, 0, 1),
-  CHAR_BITS(1, 1, 1,
+  CHAR_BITS(0, 1, 0,
             1, 0, 1,
-            1, 1, 1,
+            0, 1, 0,
             1, 0, 1,
-            1, 1, 1),
+            0, 1, 0),
   CHAR_BITS(1, 1, 1,
             1, 0, 1,
             1, 1, 1,