gitlabhq/gitlabhq — pull request #2213 by jojosch (2012-12-07 13:25:40+00:00)
Title: fix checking for rvm in env:info task

if a command like "rvm" is not found, an exception is raised. see #2194 after extension by 23a8e599 and @hiroponz's comment

```
rake: No such file or directory - rvm --version
```

Now it is first checked if the command is available