doc of PYTHONFAULTHANDLER env var: add missing "versionadded" tag

vstinner · vstinner · commit ae6d05bcb919 · 2013-07-28T02:56:50.000+02:00
diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst
@@ -562,6 +562,8 @@ conflict.
    Python traceback.  This is equivalent to :option:`-X` ``faulthandler``
    option.
 
+   .. versionadded:: 3.3
+
 
 Debug-mode variables
 ~~~~~~~~~~~~~~~~~~~~
