MINOR: config/mux-h2: Return ERR_ flags from init_h2() instead of a status

post-check function callbacks must return ERR_* flags. Thus, init_h2() is fixed
to return ERR_NONE on success or (ERR_ALERT|ERR_FATAL) on error.

This patch may be backported as far as 2.2.

(cherry picked from commit 5214099233d99b8288fb392dfe911bc9ea86e9af)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
1 file changed