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/src/http_rules.c b/src/http_rules.c
index 79aa39c..87d32f3 100644
--- a/src/http_rules.c
+++ b/src/http_rules.c
@@ -19,6 +19,8 @@
 #include <haproxy/acl.h>
 #include <haproxy/action.h>
 #include <haproxy/api.h>
+#include <haproxy/arg.h>
+#include <haproxy/capture-t.h>
 #include <haproxy/cfgparse.h>
 #include <haproxy/chunk.h>
 #include <haproxy/global.h>
@@ -26,14 +28,10 @@
 #include <haproxy/http_rules.h>
 #include <haproxy/log.h>
 #include <haproxy/pool.h>
+#include <haproxy/sample.h>
 #include <haproxy/tools.h>
 #include <haproxy/version.h>
 
-#include <haproxy/capture-t.h>
-
-#include <haproxy/arg.h>
-#include <haproxy/sample.h>
-
 
 /* List head of all known action keywords for "http-request" */
 struct action_kw_list http_req_keywords = {