fix(cmd/template): allow setting release name for template

Signed-off-by: Adam Reese <adam@reese.io>

cmd/helm/template.go

@@ -42,7 +42,7 @@ is done.
 
 To render just one template in a chart, use '-x':
 
-	$ helm template mychart -x templates/deployment.yaml
+	$ helm template foo mychart -x templates/deployment.yaml
 `
 
 func newTemplateCmd(out io.Writer) *cobra.Command {
@@ -59,10 +59,10 @@ func newTemplateCmd(out io.Writer) *cobra.Command {
 	client := action.NewInstall(customConfig)
 
 	cmd := &cobra.Command{
-		Use:   "template CHART",
+		Use:   "template [NAME] [CHART]",
 		Short: fmt.Sprintf("locally render templates"),
 		Long:  templateDesc,
-		Args:  require.ExactArgs(1),
+		Args:  require.MinimumNArgs(1),
 		RunE: func(_ *cobra.Command, args []string) error {
 			client.DryRun = true
 			client.ReleaseName = "RELEASE-NAME"

cmd/helm/testdata/output/template-no-args.txt

@@ -1,3 +1,3 @@
-Error: "helm template" requires 1 argument
+Error: "helm template" requires at least 1 argument
 
-Usage:  helm template CHART [flags]
+Usage:  helm template [NAME] [CHART] [flags]

pkg/releaseutil/manifest_sorter.go

@@ -85,8 +85,7 @@ func SortManifests(files map[string]string, apis chartutil.VersionSet, sort Kind
 			continue
 		}
 		// Skip empty files and log this.
-		if len(strings.TrimSpace(c)) == 0 {
+		if strings.TrimSpace(c) == "" {
-			log.Printf("info: manifest %q is empty. Skipping.", filePath)
 			continue
 		}