view .arcconfig @ 44436:09f3e003fc2a

phabricator: avoid a stacktrace when command arguments are missing

Previously, the TypeError wasn't properly converted to a SignatureError when
improper arguments were supplied to the inner function, because the stack depth
is 2 inside the vcrcommand decorator.  The `__name__` and `__doc__` attributes
need to be reassigned to the new wrapper so that the help summary is available.

Differential Revision: https://phab.mercurial-scm.org/D8209

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