I'm on a Moodle 2.7 and we decided that we need to set our Moodle log files to be kept for less than forever.
I tried the obvious page the one that Moodle documentation suggests 'for keep log files'.
administration > Site administration > Server > Cleanup.
And it isn't on my page. I have the other 4 things, but not that.
So where is it, or is my site broken?