Add forgotten end call

Author: porsager

lib/connection.js

@@ -322,7 +322,7 @@ function postgresSocket(options, {
       return Promise.resolve()
     },
     end: () => {
-      return new Promise(r => socket && !closed ? socket.once('close', r) : r())
+      return new Promise(r => socket && !closed ? (socket.once('close', r), socket.end()) : r())
     },
     connect
   }