Fix field variable sorting

Author: MisatoTremor

reference/forms/types/dateinterval.rst

@@ -281,14 +281,14 @@ Field Variables
 Variable      Type         Usage
 ============  ===========  ========================================
 widget        ``mixed``    The value of the `widget`_ option.
-with_years    ``Boolean``  The value of the `with_years`_ option.
-with_months   ``Boolean``  The value of the `with_months`_ option.
-with_weeks    ``Boolean``  The value of the `with_weeks`_ option.
 with_days     ``Boolean``  The value of the `with_days`_ option.
+with_invert   ``Boolean``  The value of the `with_invert`_ option.
 with_hours    ``Boolean``  The value of the `with_hours`_ option.
 with_minutes  ``Boolean``  The value of the `with_minutes`_ option.
+with_months   ``Boolean``  The value of the `with_months`_ option.
 with_seconds  ``Boolean``  The value of the `with_seconds`_ option.
-with_invert   ``Boolean``  The value of the `with_invert`_ option.
+with_weeks    ``Boolean``  The value of the `with_weeks`_ option.
+with_years    ``Boolean``  The value of the `with_years`_ option.
 ============  ===========  ========================================
 
 .. _`RFC 3339`: http://tools.ietf.org/html/rfc3339