Re: x2tics out mirror bug

[Ethan A M. <merritt@u.washington.edu>]

Bug:
>  set x2tics mirror
>  show x2tics
>     x2tics OFF

Bleah.  Someone didn't notice the comments warning that
NO_TICS is a bit mask, not an integer constant.

All the tests (ticmode == NO_TICS) are incorrect, and must be changed to
(ticmode & NO_TICS == 0)

-- 
Ethan A Merritt
Biomolecular Structure Center
University of Washington, Seattle 98195-7742