Merge r1798785 from trunk:

Quiet spurious gcc warning in ap_parse_form_data ("'escaped_char[0]' may be
used uninitialized in this function").

Submitted by: ylavic
Reviewed by: jailletc36, ylavic, jorton


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1811669 13f79535-47bb-0310-9956-ffa450edef68