test_http_no_content_length fails on VC98 and VC22

[scaprile]

27d74  2 unit_test.c:1462:              [mc] [mc]
27d74  3 net.c:148:                     1 28 closed
27d74  3 net.c:246:                     All connections closed
27d74  1 sock.c:224:                    bind: 10048
27d74  1 net.c:187:                     Failed: http://127.0.0.1:12348, errno 2
27d74  3 net.c:174:                     2 -1 http://127.0.0.1:12348/
27d74  3 sock.c:399:                    2 28 -> 127.0.0.1:12348 pend
27d75  1 event.c:31:                    2 28 socket error
27d75  3 net.c:148:                     2 28 closed
FAILURE unit_test.c:1469: fetch(&mgr, buf, url, "POST / HTTP/1.1\r\n\r\n") == 411