Update f5.json

tests/data/f5.json

@@ -18,7 +18,24 @@
                 }
             ]
         },
-        "poller": "matches discovery"
+        "poller": {
+            "devices": [
+                {
+                    "sysName": "<private>",
+                    "sysObjectID": ".1.3.6.1.4.1.3375.2.1.3.4.94",
+                    "sysDescr": "Linux F5_device 2.6.32-431.56.1.el6.f5.x86_64 #1 SMP Thu Dec 13 14:25:45 PST 2018 x86_64",
+                    "sysContact": "<private>",
+                    "version": null,
+                    "hardware": null,
+                    "features": null,
+                    "os": "f5",
+                    "type": "loadbalancer",
+                    "serial": null,
+                    "icon": "f5.svg",
+                    "location": null
+                }
+            ]
+        }
     },
     "loadbalancers": {
         "discovery": {