include cache.h before system includes to help flexelint avoid reporting mulitple includes

bin/varnishd/cache/cache_acceptor.c

@@ -33,12 +33,13 @@
 
 #include "config.h"
 
+#include "cache.h"
+
 #include <errno.h>
 #include <stdlib.h>
 #include <netinet/in.h>
 #include <netinet/tcp.h>
 
-#include "cache.h"
 #include "cache_transport.h"
 #include "cache_pool.h"
 #include "common/heritage.h"

bin/varnishd/cache/cache_backend_cfg.c

@@ -32,12 +32,12 @@
 
 #include "config.h"
 
+#include "cache.h"
+
 #include <fnmatch.h>
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "cache.h"
-
 #include "vcl.h"
 #include "vcli_serve.h"
 #include "vrt.h"

bin/varnishd/cache/cache_backend_probe.c

@@ -37,12 +37,12 @@
 
 #include "config.h"
 
+#include "cache.h"
+
 #include <poll.h>
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "cache.h"
-
 #include "binary_heap.h"
 #include "vcli_serve.h"
 #include "vrt.h"