CDRIVER-3705 sync direct connection tests

Author: samantharitter

src/libmongoc/tests/json/initial_dns_seedlist_discovery/direct-connection-false.json

@@ -9,6 +9,7 @@
     "localhost:27019"
   ],
   "options": {
-    "ssl": true
+    "ssl": true,
+    "directConnection": false
   }
 }