bug#17831: 24.4.50; bad default value for `Man-width'

[Stefan Monnier <monnier@iro.umontreal.ca>]

> By contrast, in the *Completions* use case the code that formats the
> text runs synchronously, so having in place some protocol that would
> allow to query about the dimensions of the window display-buffer
> etc. _will_ get, and then immediately use these dimensions to format
> the candidate list, is probably all we need.  The alternative you
> favor is IMO worse: it will momentarily flash incorrect display, which
> I think will look un-professional.

In the *Completions* case the empty buffer won't be temporarily
displayed (because there's no redisplay going on before it's filled).

The unprofessionalism doesn't bother me too much for M-x man, especially
since the current behavior is broken IMNSHO: it pops up a window
asynchronously, i.e. at a time you might be doing something else and not
expecting this disruption.


        Stefan