I think irrespective of the existence of the policy (and the variable),
timeout and not printing the vaule of a variable is still an issue which
needs to be addressed.
Also, for bro-2.0-beta released code, I tried printing a few variables
~bro/bro-20/bin/broctl print Scan::scan_triples
bro Scan::scan_triples = <unknown id>
and saw the <unknown id> error.
Possible, I am missing something..?