logging: Updated SysLogHandler documentation.
diff --git a/Doc/library/logging.rst b/Doc/library/logging.rst
index 72b152f..d563534 100644
--- a/Doc/library/logging.rst
+++ b/Doc/library/logging.rst
@@ -2142,6 +2142,14 @@
| ``local7`` | LOG_LOCAL7 |
+---------------+---------------+
+ .. method:: mapPriority(levelname)
+
+ Maps a logging level name to a syslog priority name.
+ You may need to override this if you are using custom levels, or
+ if the default algorithm is not suitable for your needs. The
+ default algorithm maps ``DEBUG``, ``INFO``, ``WARNING``, ``ERROR`` and
+ ``CRITICAL`` to the equivalent syslog names, and all other level
+ names to "warning".
.. _nt-eventlog-handler: