Fix govet issues

builder/amazon/common/artifact.go

@@ -88,7 +88,7 @@ func (a *Artifact) Destroy() error {
 		if len(errors) == 1 {
 			return errors[0]
 		} else {
-			return &packer.MultiError{errors}
+			return &packer.MultiError{Errors: errors}
 		}
 	}
 

builder/amazon/common/state.go

@@ -181,8 +181,6 @@ func WaitForState(conf *StateChangeConf) (i interface{}, err error) {
 
 		time.Sleep(time.Duration(sleepSeconds) * time.Second)
 	}
-
-	return
 }
 
 func isTransientNetworkError(err error) bool {

builder/openstack/server.go

@@ -92,6 +92,4 @@ func WaitForState(conf *StateChangeConf) (i interface{}, err error) {
 		log.Printf("Waiting for state to become: %s currently %s (%d%%)", conf.Target, currentState, currentProgress)
 		time.Sleep(2 * time.Second)
 	}
-
-	return
 }

packer/rpc/server.go

 package rpc
 
 import (
-	"fmt"
-	"github.com/hashicorp/go-msgpack/codec"
-	"github.com/mitchellh/packer/packer"
 	"io"
 	"log"
 	"net/rpc"
 	"sync/atomic"
+
+	"github.com/hashicorp/go-msgpack/codec"
+	"github.com/mitchellh/packer/packer"
 )
 
 var endpointId uint64
@@ -149,7 +149,7 @@ func (s *Server) Serve() {
 func registerComponent(server *rpc.Server, name string, rcvr interface{}, id bool) string {
 	endpoint := name
 	if id {
-		fmt.Sprintf("%s.%d", endpoint, atomic.AddUint64(&endpointId, 1))
+		log.Printf("%s.%d", endpoint, atomic.AddUint64(&endpointId, 1))
 	}
 
 	server.RegisterName(endpoint, rcvr)

provisioner/windows-restart/provisioner.go

@@ -134,7 +134,6 @@ WaitLoop:
 		case <-p.cancel:
 			close(waitDone)
 			return fmt.Errorf("Interrupt detected, quitting waiting for machine to restart")
-			break WaitLoop
 		}
 	}