Added some methods to LoggerAdapter, and updated documentation.
diff --git a/Lib/logging/handlers.py b/Lib/logging/handlers.py
index 744f59b..ce0673d 100644
--- a/Lib/logging/handlers.py
+++ b/Lib/logging/handlers.py
@@ -1131,6 +1131,8 @@
         For a MemoryHandler, flushing means just sending the buffered
         records to the target, if there is one. Override if you want
         different behaviour.
+
+        The record buffer is also cleared by this operation.
         """
         if self.target:
             for record in self.buffer: