fixed update phase string output; made it a bit more readable imo

Was getting this:

```
[boneskull@lectroid:~/projects/node-hggit-tools]$ grunt dry-run-update
Running "devUpdate:dry-run" (devUpdate) task
Found 9 devDependencies to check for latest version
Found 12 dependencies to check for latest version

Package:grunt-contrib-jshint, Package type: 0.8.0, Current version: 0.8.0, Wanted: 0.9.2, Latest: %s
```

...which was not quite right.  I fixed that.  I also took the liberty of adding some linebreaks.