fuel/core — Issue #810: Cannot update a file if the parent directory is not writeable
Author: Savageman
Created: 2012-02-06 11:27:44+00:00
State: open

`File::update()` returns an error if:
- the file already exists and is writeable ;
- the directory contaiing the file is not writeable.

In other words, my file is writeable, but I cannot update it because the directory is not.