On 2013-10-06 00:30 +0800, Stefan Monnier wrote:
> Good (I'd have used nil rather than t, but it doesn't matter).

Done.

> I wonder if the default shouldn't be "infinite delay", so as to preserve
> existing behavior?

Done. (If it is OK I like to turn it on for a month or two for some
testing and then turn it off eventually)

> I think the only valid reason to disable the help-char here is if it
> prevents access to an existing register.  So we can get rid of this
> custom var and instead make sure we only obey help-char if there is no
> existing register by that name.

The trouble is when you create new registers. But I remove that custom
variable anyway since it won't be used much. It is unlikely C-h be used
as a register.

If no one objects I would like to install the attached patch.

Thanks,
Leo