REGTEST: http-messaging/h00000: Fix the test when the HTX is enabled

The way unexpected bodies are handled for responses to HEAD requests differs from
the legacy HTTP to the HTX. While it is dropped wih the legacy HTTP, in HTX, it
is parsed as the response to the next request. So, in HTX, a 502 error is
returned to the client and the connexion is closed.

This test has been modified to pass in both mode.
1 file changed