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_acl.c b/src/http_acl.c
index 17a818e..a81fb03 100644
--- a/src/http_acl.c
+++ b/src/http_acl.c
@@ -17,8 +17,9 @@
 #include <time.h>
 
 #include <haproxy/acl.h>
-#include <haproxy/auth.h>
 #include <haproxy/api.h>
+#include <haproxy/arg.h>
+#include <haproxy/auth.h>
 #include <haproxy/chunk.h>
 #include <haproxy/http.h>
 #include <haproxy/pattern.h>
@@ -26,8 +27,6 @@
 #include <haproxy/tools.h>
 #include <haproxy/version.h>
 
-#include <haproxy/arg.h>
-
 
 /* We use the pre-parsed method if it is known, and store its number as an
  * integer. If it is unknown, we use the pointer and the length.