cs_backgrounds: Use font-size instead of font-scale to reduce the

author and size markup.

<sub></sub> generates warnings during icon-view updates.

Author: mtwebster

files/usr/share/cinnamon/cinnamon-settings/modules/cs_backgrounds.py

@@ -781,7 +781,7 @@ def _do_load(self, path):
                     dimensions = "%dx%d" % (pix[1], pix[2])
 
                     self._loaded_data_lock.acquire()
-                    self._loaded_data.append((to_load, pix[0], "<b>%s</b>\n<sub>%s%s</sub>" % (label, artist, dimensions), path))
+                    self._loaded_data.append((to_load, pix[0], "<b>%s</b>\n<small>%s%s</small>" % (label, artist, dimensions), path))
                     self._loaded_data_lock.release()
 
         self._loading_lock.acquire()