recognize ESC[APE] in menu accel strings (patch 733967)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@20572 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/menu.tex

@@ -168,6 +168,7 @@ characters listed in the table below (again, case doesn't matter):
 \twocolitem{{\tt END}}{End key}
 \twocolitem{{\tt SPACE}}{Space}
 \twocolitem{{\tt TAB}}{Tab key}
+\twocolitem{{\tt ESC} or {\tt ESCAPE}}{Escape key (Windows only)}
 \end{twocollist}
 
 \wxheading{See also}