Accelerator names Prior and Next on Windows

Hello lispworkers,

IMHO, character names Prior and Next are rather confusing on Windows as the
corresponding keyboard keys are usually named PageUp and PageDn on PC.

Is there any way to substitute a "correct" name when it is printed as menu
item accelerator? I guess sys:print-pretty-gesture-spec should be hacked.
--
Sincerely,
Dmitriy Ivanov
lisp.ystok.ru