ensure positive


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1447871 13f79535-47bb-0310-9956-ffa450edef68
typos


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1447872 13f79535-47bb-0310-9956-ffa450edef68