bal --args-only
<<<
D 1,000.00 USD

2007-12-31 * Start of year / Opening balances.
  Account1   1000 EUR @ 1.6 USD
  Account2   -1000 EUR @ 1.5 USD
>>>1
>>>2
While parsing file "bug.dat", line 8: 
While balancing entry from "bug.dat", lines 6-8:
> 2007-12-31 * Start of year / Opening balances.
>   Account1   1000 EUR @ 1.6 USD
>   Account2   -1000 EUR @ 1.5 USD
Unbalanced remainder is:
          100.00 USD
Error: Entry does not balance
=== 1