bug#9919: 24.0.91; font-lock broken in dired

[Stefan Monnier]

> I am still getting reports about this wrt dired+.el from users on
> GNU/Linux.  So perhaps my workaround is not sufficient there - dunno.

Whenever you change font-lock-defaults, you need to cause
font-lock-keywords (and the text already font-locked) to be refreshed,
unless you know for sure that font-lock-mode has not yet been started.

> In any case, this is a regression and a performance problem.

I don't see any evidence of a performance problem.


        Stefan