[master] 8723d4f Add missing header

[Federico G. Schwindt]

commit 8723d4fe5eb808c2e239d6091308e1bad7f4a415
Author: Federico G. Schwindt <fgsch at lodoss.net>
Date:   Fri Feb 17 23:42:09 2017 +0000

    Add missing header

diff --git a/bin/varnishtest/vtc_subr.c b/bin/varnishtest/vtc_subr.c
index 6a8f1b7..a898b12 100644
--- a/bin/varnishtest/vtc_subr.c
+++ b/bin/varnishtest/vtc_subr.c
@@ -28,6 +28,8 @@
 
 #include "config.h"
 
+#include <sys/types.h>
+
 #include "vtc.h"
 
 #include "vct.h"