update docstrings for latest black

pylib/tests/test_importing.py

@@ -25,7 +25,7 @@ srcCards = None
 
 
 def clear_tempfile(tf):
-    """ https://stackoverflow.com/questions/23212435/permission-denied-to-write-to-my-temporary-file """
+    """https://stackoverflow.com/questions/23212435/permission-denied-to-write-to-my-temporary-file"""
     try:
         tf.close()
         os.unlink(tf.name)

qt/aqt/browser/browser.py

@@ -406,7 +406,7 @@ $editorToolbar.then(({{ addButton }}) => addButton(editorToolbar.labelButton({{
     def onRowChanged(
         self, _current: Optional[QItemSelection], _previous: Optional[QItemSelection]
     ) -> None:
-        """Update current note and hide/show editor. """
+        """Update current note and hide/show editor."""
         if self._closeEventHasCleanedUp:
             return