karma-runner/karma — pull request #1071 by dmitriiabramov (2014-05-25 06:23:46+00:00)
Title: Remove trailing whitespace from generated config file

When `answers` object contains empty arrays for `FILES`, `EXCLUDE` or `PREPROCESSORS` it generates lines with trailing whitespace which can be annoying.
this commit changes templates and processing functions

before:
```javascript
// list of files / patterns to load in the browser
files: [
______
],
```

now:
```
// list of files / patterns to load in the browser
files: [
],
```