Fix another copy/paste eror.

ticdesk_account/forms.py

@@ -32,7 +32,8 @@ def is_username_free(uid):
 def is_date_min_years_ago(min_years):
     # Generate a validator for the desired amount of years
     def _the_validator(dt):
-        delta = date.today() - dt
+        today = date.today()
+        delta = today - dt
         years = int(delta.days / 365.2425)
         if dt > today - relativedelta(years=years):
             years -= 1