Some experimentation with providing dynamic sidebar help information following discussion in saulpw/visidata#1733
The idea is to conditionally override the help text on a DirSheet
only if it looks like we're in a
Cloud Custodian output directory.
This is a hack that could be added to ~/.visidatarc
... but probably shouldn't yet.
I'd call this def
help
or at least add a@wraps(DirSheet.help)
.