When extract the `nexus-2.8.0-bundle.tar.gz` it create the directory `2.8.0-05`

```bash
$ ls
nexus-2.8.0-bundle.tar.gz
[~/tmp/nexus]-[chef:jusbrasil]
$ tar xzf nexus-2.8.0-bundle.tar.gz
$ ls -l
total 89000
drwxr-xr-x  10 robinho  staff       340 Apr 22 23:07 nexus-2.8.0-05
-rw-r--r--   1 robinho  staff  45566492 Apr 22 23:07 nexus-2.8.0-bundle.tar.gz
drwxr-xr-x   4 robinho  staff       136 Apr  8 21:35 sonatype-work
```