Unknown variable. Trying one at a time.

[Hal Murray]

> Not useful unless it tells also you what variable was not available.

Yes.  I was thinking of something like:
  abc: True
  foo: (not available)
  xyz: 13

> Also, maybe should need a 'verbose' option (-v) before it is output.

The catch with that is that the default doesn't tell you that you are missing 
something.

I think we are getting down to the weeds.


-- 
These are my opinions.  I hate spam.