apreq_parse_multipart: allow (back) empty parts' "name" and "filename".

Fixes regression in v2.17, restoring the behaviour of v2.16.

Submitted by: Joe Schaefer


git-svn-id: https://svn.apache.org/repos/asf/httpd/apreq/trunk@1905018 13f79535-47bb-0310-9956-ffa450edef68
3 files changed