Merge r1453604 from trunk:

fix merge of min/max file size by setting corresponding _set


Submitted by: covener
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1465986 13f79535-47bb-0310-9956-ffa450edef68