[STUMP] colon doesn't accept arguments

[Dirk Sondermann]

Since the last change of command.lisp (as of 12th May 2010, so
it's already in version 0.9.7) it's no longer possible to enter
a command with arguments at the colon prompt in the input bar.

For example, in version 0.9.6 one could override a window title
by entering

  : title new-title

but in version 0.9.7 (as well as in the current git version)
this leads to an error message

  : title new-title  [No match]

To restore the old behaviour it would suffice to remove the
":require-match t" argument in the invocation of completing-read
in the definition of the colon command, which was introduced
(perhaps unintentionally) along with the conversion from
&optional to &key arguments.

--
Dirk

colon.patch
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