properly deal with menu shortcuts that are symbols (e.g., 'f1) in the "Show Active Keybindings" menu item
properly deal with menu shortcuts that are symbols (e.g., 'f1) in
the "Show Active Keybindings" menu item

closes PR 12737

Thanks to Laurent Orseau for the fix!

mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket