commit: zshrc: Don't use is-at-least anymore

[Frank Terbeck]

Changeset available online at:

http://hg.grml.org/grml-etc-core/rev/5dacfadac11b37f81cc0940dd63471717b87d579


changeset:   376:5dacfadac11b37f81cc0940dd63471717b87d579
user:        Frank Terbeck <ft at grml.org>
date:        Fri Feb 01 01:28:59 2008 +0100
files:       etc/zsh/zshrc
description:
zshrc: Don't use is-at-least anymore

While this can be a useful function, it really is a little overkill
for out purposes; especially, since we provide much simpler fallback
functions, when it is not available.

added is43() as well, which is currently not used, but probably should. :-)