go fmt

packer/rpc/communicator.go

@@ -147,7 +147,7 @@ func (c *communicator) Download(path string, w io.Writer) (err error) {
 	return
 }
 
-func (c *CommunicatorServer) Start(args *CommunicatorStartArgs, reply *interface{}) (error) {
+func (c *CommunicatorServer) Start(args *CommunicatorStartArgs, reply *interface{}) error {
 	// Build the RemoteCmd on this side so that it all pipes over
 	// to the remote side.
 	var cmd packer.RemoteCmd
@@ -197,7 +197,6 @@ func (c *CommunicatorServer) Start(args *CommunicatorStartArgs, reply *interface
 		cmd.Stderr = conn
 	}
 
-
 	// Connect to the response address so we can write our result to it
 	// when ready.
 	responseC, err := c.mux.Dial(args.ResponseStreamId)