ZSH: The first letter of a command gets repeated

[Hermann]

On 20.06.2009 at 03:49:48 Tyler Spivey <tspivey at pcdesk.net> wrote:

> On Fri, Jun 19, 2009 at 09:50:06PM +0100, Michael Whapples wrote:
>> I notice the same with zsh. I don't have a fix for zsh, instead I  
>> decided to switch to bash as the default shell by using the chsh command.
>>
> I've been using zsh daily for years.
> You might not need to change your prompt, but if things break, try it.
> try adding this to your .zshrc:

Thanks, that worked, but I don't understand the last line, so I omitted
it; there seem to be no consequences.
If "m" stands for machine, I should insert "grml" here, but thsi
destroyed my prompt (rml#).
Hermann