resetwarnings():  change the docstring to reflect what the code
actually does.  Note that the description in the Library Reference
manual is already accurate.

Bugfix candidate.
diff --git a/Lib/warnings.py b/Lib/warnings.py
index 7ae9820..7966a33 100644
--- a/Lib/warnings.py
+++ b/Lib/warnings.py
@@ -139,7 +139,7 @@
         filters.insert(0, item)
 
 def resetwarnings():
-    """Reset the list of warnings filters to its default state."""
+    """Clear the list of warning filters, so that  no filters are active."""
     filters[:] = []
 
 class _OptionError(Exception):