Fix TMP permissions to avoid UPLOAD_ERR_NO_TMP_DIR.

[scara]

Related issues: moodlehq/moodle-docker#9.

[danpoltawski]

Ahh, this seemed extremely weird to me that it would be present in the upstream php image..

So then I realised it's probably actually because of the above ADD command..

And the problem being the permissions set on the folder here: https://github.com/danpoltawski/moodle-php-apache/tree/master/root/tmp

So would be setting those permissions be a better fix?

[danpoltawski]

Ah but of course git can't track those permissions!

[scara]

Another proposal, that I didn't make to preserve your initial hierarchy, is to use e.g. /opt and not /tmp but I think it would be better to do it when working at #1 where even /opt could be not a good choice (I still think it will be 😉 ).