Fix typo in doc comment for QLocaleXmlWriter.close()

Change-Id: I128ed5e0ebd01a7ed1f3a3049d2b63f1df042562
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>

util/locale_database/qlocalexml.py

@@ -396,7 +396,7 @@ class QLocaleXmlWriter (object):
         self.__write(f'<{tag}>{text}</{tag}>')
 
     def close(self, grumble):
-        """Finish writing and grumble any issues discovered."""
+        """Finish writing and grumble about any issues discovered."""
         if self.__rawOutput != self.__complain:
             self.__write('</localeDatabase>')
         self.__rawOutput = self.__complain