We believe that your issue has been closed by the upload of
Version 1.2.9 of grml-scripts from Michael Prokop <mika@grml.org>.
The explanation is attached below

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Hash: SHA1

Format: 1.8
Date: Sun, 28 Feb 2010 23:28:16 +0100
Source: grml-scripts
Binary: grml-scripts
Architecture: source amd64
Version: 1.2.9
Distribution: unstable
Urgency: low
Maintainer: Michael Prokop <mika@grml.org>
Changed-By: Michael Prokop <mika@grml.org>
Description: 
 grml-scripts - some small scripts which should make life easier
Changes: 
 grml-scripts (1.2.9) unstable; urgency=low
 .
   * caps-ctrl: using $(...) instead of backticks and do not load
     colors module any longer. Thanks to Alexander Steinböck.
     [Closes: issue382]
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Fixed in git, thanks to the contributors.

Thanks, Frank. Alex: if we can get rid of zsh within caps-ctrl that would be 
fine. If it's too much effort than just keep it as it is. Which patches should 
I apply?

regards,
-mika-

This issue had it's status changed but no message was send as to what
happened. Therefore I'm querying you guys for the status of this one.

The appended patches look obviously correct.
Just the repeat-vs-for sub-issue seems to be unhandled (and actually
not discussed at all).

Regards, Frank

> In association to that, how eager are we to switch this function to
> /bin/dash?
> IMHO the only zsh-feature used is `repeat 15 echo -n' which can easily
> be substituted by a for-loop in dash.
And afaics, that's not even nessecary.

  ,----[ man 5 keymaps ]-
  | If you enter a key definition line with only and exactly one
  | action code after the equals sign, it has a special meaning. If
  | the code (numeric or symbolic) is not an ASCII letter, it means
  | the code is implicitly replicated through all columns being
  | defined.
  `----

I guess `autoload -U colors ; colors' is left from an older version.
Imho it's, due to the use of `/etc/grml/lsb-functions', obsolete.

In association to that, how eager are we to switch this function to
/bin/dash?
IMHO the only zsh-feature used is `repeat 15 echo -n' which can easily
be substituted by a for-loop in dash.
But then check4progs doesn't work either, I guess. So we would have to
test for the needed programs in a more classic way, à la [[ -x ]] or
by a local function check4progs.

Thanks for your work, Alex - I'm setting it to "deferred" because I'd like to 
see such stuff integrated in grml after we have released the new stable 
release. I'll apply your patch then, thanks.

regards,
-mika-

Using $(...) instead of backticks in caps-ctrl, following grml's
policy for shell scripts.
<http://grml.org/policy -- 5.4. Good practices for shellscript>