Feature request: Make undefined variables an error

[Chip Seraphine]

For about the one bajillionth time, I troubleshot a problem in my 
environment and it came back to some variable being undefined.  Rather 
than put explicit tests (strcmps and whatnot) for every variable I ever 
set, I would be much happier if I could pass some sort of switch to 
cfengine that would cause it to simply fail with a useful error message 
whenever a variable went undefined rather than handling as a string that 
happens to begin with '$'.  It is far safer and more secure to abort 
than to run commands with garbage inputs....

I'm quite comfortable using $(dollar) when I need to, so I can't think 
of a downside of tis...


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Chip Seraphine
Unix Administrator
TradeLink, LLC
312-264-2048
chip@trdlnk.com