Fix display of CIDR/Update Freq in Alias Edit

Fixes #3376. I have no idea what the "^" characters were meant to do, but removing them makes the CIDR/Update Freq value be displayed correctly when editing. Will there be some other side-effect from removing the "^"?
Merge pull request #867 from phil-davis/master

Fix display of CIDR/Update Freq in Alias Edit