bug#23341: x-show-tip does not respect the value of tooltip-hide-delay, and the default tooltip timeout isn't configurable

[Po Lu]

Lars Ingebrigtsen <larsi@gnus.org> writes:

> Allowing the user to alter those doesn't seem useful.

But there are external packages calling that function utilizing the
default meanings of its parameters, and it's also an internal function
used by `read-file-dialog', so the analogy with `x-show-tip' is
complete.