Add customizable forwardfor option

Change-Id: I484abdd19eaa4b4530a9d937b8391713e828af39
diff --git a/tests/pillar/single.sls b/tests/pillar/single.sls
index 3d1e9e4..0129244 100644
--- a/tests/pillar/single.sls
+++ b/tests/pillar/single.sls
@@ -1,6 +1,8 @@
 haproxy:
   proxy:
     enabled: true
+    forwardfor:
+      enabled: true
     mode: tcp
     logging: syslog
-    max_connections: 1024
\ No newline at end of file
+    max_connections: 1024