(font-lock-fontify-buffer) should not be called interactively

[JalapenoGremlin]

This causes problems for other users of font-locking in the buffer when fic-mode is used as a hook.

In fic-mode:
fic-mode.el:128:8:Warning: ‘font-lock-fontify-buffer’ is for interactive use
    only; use ‘font-lock-ensure’ or ‘font-lock-flush’ instead.