[..whatwhen()..]

Also, if you want this function to be included in the
grml-zsh-refcard, add an appropriate tag in front of it.

eg:

[snip]
#f1# show entries in zsh history
whatwhen() {
[snap]

And last but not least: Do we want this function in etc/zsh/zshrc or
in etc/skel/.zshrc? The former would make it available for all users
including root, the latter only for normal users. See the refcard for
where it would fit.

If you decide to put it into the skel file, use '#f2#' instead of
'#f1#' as the tag.

These tags are documented on top of etc/zsh/zshrc and on top of the
genrefcard.pl script.

Regards, Frank