The HTTP_REDIRECT() macro already included this case, but the
switch-case with the return value of http_get_reply(conn) didn't. This
made it so that a server returning HTTP_TEMP_REDIRECT (307) would
generate a failure, unless libfetch was used in verbose mode, in which
case the headers would be parsed (in order to report errors), then the
'Location' header would be found and a new connection would be made.
Fixes#348
9c5443d134