haproxy: fixes from upstream

 - [PATCH 15/20] BUG/MEDIUM: remove debugging code from systemd-wrapper
 - [PATCH 16/20] BUG/MEDIUM: http: adjust close mode when switching to
 - [PATCH 17/20] BUG/MINOR: config: don't propagate process binding on
 - [PATCH 18/20] BUG/MEDIUM: check: rule-less tcp-check must detect
 - [PATCH 19/20] BUG/MINOR: tcp-check: report the correct failed step in
 - [PATCH 20/20] BUG/MINOR: config: don't propagate process binding for

Signed-off-by: Thomas Heil <heil@terminal-consulting.de>