Problem when numerous translation po files

Hi,

Wanting to pull a language for install guide, I pull fr_FR but fall with error :

```
ValueError: too many values to unpack
```

Not a problem since almost all I wanted has been pulled. But now I want to delete this language fr_FR, doing 'tx delete -l fr_FR" trying to add force and skip as well, but without success all gave me :

```
ValueError: too many values to unpack
```
