Issue #6972: keep the warning about untrusted extraction and mention

the version it was improved in.

diff --cc Doc/library/zipfile.rst
index b00e26d9c033f4ce0b7b00a5297ca6a48df948d1,c63b23bffb4149a5eb0ca50b4efffab60cb67571..e84c707b22fce3534828c946afeecfe4ad30fb53
--- 1/Doc/library/zipfile.rst
--- 2/Doc/library/zipfile.rst
+++ b/Doc/library/zipfile.rst
@@@ -260,9 -260,15 +260,13 @@@ ZipFile Object
     be a subset of the list returned by :meth:`namelist`.  *pwd* is the password
     used for encrypted files.
  
-    .. note::
+    .. warning::
  
 -      dots ``".."``.
 -
 -   .. versionchanged:: 3.3.1
 -      The zipfile module attempts to prevent that.  See :meth:`extract` note.
+       Never extract archives from untrusted sources without prior inspection.
+       It is possible that files are created outside of *path*, e.g. members
+       that have absolute filenames starting with ``"/"`` or filenames with two
++      dots ``".."``.  This module attempts to prevent that.
 +      See :meth:`extract` note.
  
  
  .. method:: ZipFile.printdir()