Cleaner measurement against wrong-number-of-arguments in Account.open().
treee4116aa3c234a6ff8b4b5625fe3437e20556c428
-rw-r--r-- 3471 account.rb
-rwxr-xr-x 2136 fin.rb
-rw-r--r-- 2381 ledger.rb
-rw-r--r-- 1430 tabdelimited.rb
-rw-r--r-- 1382 transaction.rb
-rw-r--r-- 110 transactions