bug#23918: 25.1.50; Menu bar breakage

[martin rudalics]

> The patch below fixes this (and the typo).

Please install.  Here on Windows clicking on _any_ menu item gets me

Debugger entered--Lisp error: (void-function nilp)
  (nilp vsb)

and Windows stalls in a sense that I'm not able to switch tasks normally
(not with emacs -Q but I'm not very keen to track this issue down).  The
only remedy is currently to shut down this instance of Emacs.

Thanks, martin