Re: compile.el underlining

[Richard Stallman]

    Is there a reason you use

       '((default :inherit font-lock-warning-face)
         (((supports :underline t)) :underline t))

    rather than

       '((default :inherit font-lock-warning-face)
         (t :underline t))

    after all, if it's not supported the setting is harmless.

       '((t :inherit font-lock-warning-face :underline t))

I was thinking of the changes I recently made to the underline face.
If you know that those two would work equivalently, please change it.