Shane Kilkelly 9ee39ae930 Wrap the generic repository-missing message correctly ...

Now appears to the client as:

```
fatal: remote error: no git access
This Overleaf project currently has no git access, either because
the project does not exist, or because git access is not enabled
for the project.
```

2018-12-13 12:37:42 +00:00

..

uk/ac/ic/wlgitbridge

Wrap the generic repository-missing message correctly

2018-12-13 12:37:42 +00:00