set_limit_xml_req_body() used atol(), so "abc123" and "123abc" were
accepted as 0 and 123, and a value out of range of a long gave an
undefined result. Parse the whole argument with apr_strtoff() like
LimitRequestBody, and reject values that do not fit in limit_xml_body
or exceed AP_MAX_LIMIT_XML_BODY.
PR: 69975
GitHub: closes#825
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1939121 13f79535-47bb-0310-9956-ffa450edef68