Fix doc

Author: AA-Turner

Doc/whatsnew/2.6.rst

@@ -1747,7 +1747,7 @@ Interpreter Changes
 -------------------------------
 
 Two command-line options have been reserved for use by other Python
-implementations.  The :option:`-J` switch has been reserved for use by
+implementations.  The :option:`!-J` switch has been reserved for use by
 Jython for Jython-specific options, such as switches that are passed to
 the underlying JVM.  :option:`-X` has been reserved for options
 specific to a particular implementation of Python such as CPython,

Doc/whatsnew/3.14.rst

@@ -805,7 +805,7 @@ Other language changes
   :keyword:`async with`).
   (Contributed by Bénédikt Tran in :gh:`128398`.)
 
-* :option:`-J` is no longer a reserved flag for Jython_,
+* :option:`!-J` is no longer a reserved flag for Jython_,
   and now has no special meaning.
   (Contributed by Adam Turner in :gh:`133336`.)