Change log retention is shown as Indefinite

[markkuleinio]

NetBox version

v3.1.6

Python version

3.8

Steps to Reproduce

1. Go to Admin - Config revisions
2. Create a config revision with Changelog retention of 730 days
3. Create any object in NetBox, for example go to IPAM and create prefix 10.10.10.0/24
4. Go to Change Log tab

Expected Behavior

Changelog retention in the bottom of the list is 730 days

Observed Behavior

Bottom of the page says: "Change log retention: Indefinite"