`.` doesn't match `\n`

If `test.log` has the following contents:

```
Package foo Warning: bar
(foo)                baz
```

Then the following `test.log.pulp` file correctly results in no output:

```
!'bar\nbaz'
```

But with this `test.log.pulp`, pulp incorrectly produces output:

```
!'bar.baz'
```
