BUG/MINOR: mux-h1: Don't return the empty chunk on HEAD responses

HEAD responses must not have any body payload. But, because of a bug, for chunk
reponses, the empty chunk was always added.

This patch fixes the Github issue #146. It must be backported to 2.0 and 1.9.

(cherry picked from commit b8fc304e8f996f0d9835e4d6524ef8961d3be076)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
1 file changed