Issue #367: bean-doctor context shows nothing for errors (blais/beancount)

[Martin Michlmayr]

New issue 367: bean-doctor context shows nothing for errors
https://bitbucket.org/blais/beancount/issues/367/bean-doctor-context-shows-nothing-for

Martin Michlmayr:

Let's assume this test case which doesn't balance:

```
2010-01-01 open Assets:A
2010-01-01 open Assets:B

2019-01-25 * "Test"
Assets:A 1 AAPL { 15 # 40 USD }
Assets:B -50 USD
```

```
bean-check d1
/home/tbm/personal/finance/d1:5: Transaction does not balance: (5 USD)
```

Ok, good. But `bean-doctor context d1 5` doesn't show me any error (same for lines 6 and 7):

```
2019-01-25 * "Test"
Assets:A 1 AAPL {55 USD, 2019-01-25} ; 55 USD
Assets:B -50 USD ; -50 USD

Residual: (5 USD)
Basis: (55 USD)
```

Shouldn't it mention the balancing error here?