Michael Prokop <mika@grml.org> has uploaded a package that may fix your bug.
Please test the package and inform the maintainer whether
version 0.3.24 of grml-etc-core works as intended or not.

Thank you

The changelog is attached below

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Format: 1.7
Date: Sat, 15 Sep 2007 10:24:36 +0200
Source: grml-etc-core
Binary: grml-etc-core
Architecture: source all
Version: 0.3.24
Distribution: unstable
Urgency: low
Maintainer: Michael Prokop <mika@grml.org>
Changed-By: Michael Prokop <mika@grml.org>
Description: 
 grml-etc-core - core ecetera files for the grml system
Changes: 
 grml-etc-core (0.3.24) unstable; urgency=low
 .
   [ Frank Terbeck ]
   * try to make 'lsb-functions' parsable by (d)ash
 .
   [ Michael Prokop ]
   * /etc/zsh/zshrc: convert utf2iso and iso2utf into functions,
     Use 'command grep' (thanks to z3ttacht) and fix a small bug
     in iso2utf.
   * Pre-Depend on zsh [Testing: issue287]
Files: 
 2656a9d273727adfbef722cc390039da 596 grml optional grml-etc-core_0.3.24.dsc
 9c9f6503c5df9fde2ec51414dca8d7ad 90187 grml optional grml-etc-core_0.3.24.tar.gz
 3746f33ca9fa1440cd6daeb507750a4b 91794 grml optional grml-etc-core_0.3.24_all.deb

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