CLEANUP: include: tree-wide alphabetical sort of include files

This patch fixes all the leftovers from the include cleanup campaign. There
were not that many (~400 entries in ~150 files) but it was definitely worth
doing it as it revealed a few duplicates.
diff --git a/contrib/mod_defender/defender.c b/contrib/mod_defender/defender.c
index 5e759b5..e798a22 100644
--- a/contrib/mod_defender/defender.c
+++ b/contrib/mod_defender/defender.c
@@ -19,10 +19,10 @@
 #include <stdarg.h>
 
 #include <haproxy/api.h>
-#include <haproxy/tools.h>
 #include <haproxy/chunk.h>
 #include <haproxy/spoe.h>
 #include <haproxy/time.h>
+#include <haproxy/tools.h>
 
 #include <http_core.h>
 #include <http_main.h>
diff --git a/contrib/mod_defender/spoa.c b/contrib/mod_defender/spoa.c
index 35b3dd8..2ae1a36 100644
--- a/contrib/mod_defender/spoa.c
+++ b/contrib/mod_defender/spoa.c
@@ -31,8 +31,8 @@
 #include <event2/event_struct.h>
 #include <event2/thread.h>
 
-#include <haproxy/list.h>
 #include <haproxy/chunk.h>
+#include <haproxy/list.h>
 #include <haproxy/spoe.h>
 
 #include "spoa.h"
diff --git a/contrib/modsecurity/spoa.c b/contrib/modsecurity/spoa.c
index 2c0b545..1a6cd90 100644
--- a/contrib/modsecurity/spoa.c
+++ b/contrib/modsecurity/spoa.c
@@ -36,8 +36,8 @@
 #include <event2/event_struct.h>
 #include <event2/thread.h>
 
-#include <haproxy/list.h>
 #include <haproxy/chunk.h>
+#include <haproxy/list.h>
 #include <haproxy/spoe.h>
 
 #include "spoa.h"
diff --git a/contrib/prometheus-exporter/service-prometheus.c b/contrib/prometheus-exporter/service-prometheus.c
index 7615698..952558c 100644
--- a/contrib/prometheus-exporter/service-prometheus.c
+++ b/contrib/prometheus-exporter/service-prometheus.c
@@ -14,10 +14,11 @@
  */
 
 #include <haproxy/action-t.h>
+#include <haproxy/api.h>
 #include <haproxy/applet.h>
 #include <haproxy/backend.h>
-#include <haproxy/api.h>
 #include <haproxy/cfgparse.h>
+#include <haproxy/compression.h>
 #include <haproxy/frontend.h>
 #include <haproxy/global.h>
 #include <haproxy/http.h>
@@ -26,10 +27,8 @@
 #include <haproxy/list.h>
 #include <haproxy/listener.h>
 #include <haproxy/log.h>
-#include <haproxy/pool.h>
-
-#include <haproxy/compression.h>
 #include <haproxy/pipe.h>
+#include <haproxy/pool.h>
 #include <haproxy/proxy.h>
 #include <haproxy/sample.h>
 #include <haproxy/server.h>