costs cause wrong error position in balance assertion failure messages

[simonmichael]

Costs are ignored when checking balance assertions... but they disrupt the underline when showing an assertion failure.

2023-01-01
    (a)   A 1 @ B 2 = A 3

$ hledger-1.31 -f t.j check
hledger-1.31: Error: /Users/simon/src/hledger/t.j:2:21:
1 | 2023-01-01
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^
  |     (a)       A 1 @ B 2 = A 3

Should be:

hledger: Error: /Users/simon/src/hledger/t.j:2:21:
  | 2023-01-01
2 |     (a)       A 1 @ B 2 = A 3
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^

[simonmichael]

Fixed in master.