Fix exec path errors

Fix errors such as

```
Error: Validation of Exec[download-anope] failed: 'wget http://downloads.sourceforge.net/project/anope/anope-stable/Anope%201.8.8/anope-1.8.8.tar.gz -O /tmp/anope.tar.gz' is not qualified and no path was specified. Please qualify the command or specify a path. at /usr/share/puppet/modules/anope/manifests/install.pp:32
```