jorgebastida / awslogs / 178

92%

Pull #60

travis-ci

`awslogs get`: inform user if no streams match pattern

Resolves:
https://github.com/jorgebastida/awslogs/issues/52

Previously, given a query like:
```
$ python run.py get my-log-group my-pattern.*
```

if no streams matched `my-pattern.*` then results from all streams would
be returned.

Now the user sees an error message if no streams match their pattern:

```
$ python run.py get my-log-group my-pattern.*
No streams match your pattern 'my-pattern.*'.
```

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