bug#27574: 25.2; `Info-use-header-line' documentation

[Lars Ingebrigtsen]

Drew Adams <drew.adams@oracle.com> writes:

> The doc should say that toggling the value has no effect if Info has
> already been opened.  It's not even enough to quit Info.  Apparently you
> must kill any `Info-mode' buffers and then open Info again, to see the
> change.  This is not obvious.

This doesn't seem to be the case on the trunk, at least -- following any
link in the Info buffer then gives you a display that respects this
variable.

I think that's acceptable, and doesn't need clarification in the
variable doc string.

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