[issue588] New dispatcher code breaks command error reporting

[Thomas Arendsen Hein]

New submission from Thomas Arendsen Hein <thomas at intevation.de>:

"hg cat" outside a repository yields with current main:
"abort: repository  not found!"
before this it was:
"abort: There is no Mercurial repository here (.hg not found)!"

"hg cat" inside a repository yields a traceback:
TypeError: cat() takes at least 3 non-keyword arguments (2 given)
before this it was:
cat: invalid arguments
followed by 'hg help cat' output.

(not only for hg cat, this is just an example)

This happens since mpm's refactoring of the dispatcher code on June 11th.

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messages: 3198
nosy: ThomasAH, mpm
priority: bug
status: unread
title: New dispatcher code breaks command error reporting
topic: ui

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Mercurial issue tracker <mercurial-bugs at selenic.com>
<http://www.selenic.com/mercurial/bts/issue588>
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