Merge pull request #969 from Random-Liu/golang-1.11-gofmt

Update code for golang 1.11 gofmt.

pkg/server/helpers.go

@@ -137,9 +137,9 @@ const (
 // generated is unique as long as sandbox metadata is unique.
 func makeSandboxName(s *runtime.PodSandboxMetadata) string {
 	return strings.Join([]string{
-		s.Name,      // 0
-		s.Namespace, // 1
-		s.Uid,       // 2
+		s.Name,                       // 0
+		s.Namespace,                  // 1
+		s.Uid,                        // 2
 		fmt.Sprintf("%d", s.Attempt), // 3
 	}, nameDelimiter)
 }
@@ -149,10 +149,10 @@ func makeSandboxName(s *runtime.PodSandboxMetadata) string {
 // unique.
 func makeContainerName(c *runtime.ContainerMetadata, s *runtime.PodSandboxMetadata) string {
 	return strings.Join([]string{
-		c.Name,      // 0
-		s.Name,      // 1: pod name
-		s.Namespace, // 2: pod namespace
-		s.Uid,       // 3: pod uid
+		c.Name,                       // 0
+		s.Name,                       // 1: pod name
+		s.Namespace,                  // 2: pod namespace
+		s.Uid,                        // 3: pod uid
 		fmt.Sprintf("%d", c.Attempt), // 4
 	}, nameDelimiter)
 }