Solve the issue #7749 where proper formating was not being done if --short(-q)...

Solve the issue #7749 where proper formating was not being done if --short(-q) option was used with other formating options like json, yaml
Signed-off-by: Anshul Verma <ansverma@localhost.localdomain>

cmd/helm/list.go

@@ -83,6 +83,27 @@ func newListCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 			}
 
 			if client.Short {
+
+				names := make([]string, 0)
+				for _, res := range results {
+					//fmt.Fprintln(out, res.Name)
+					names = append(names, res.Name)
+				}
+
+				outputFlag := cmd.Flag("output")
+				if outputFlag.Changed {
+					switch outputFlag.Value.String() {
+					case "json":
+						output.EncodeJSON(out, names)
+						return nil
+					case "yaml":
+						output.EncodeYAML(out, names)
+						return nil
+					default:
+						return outfmt.Write(out, newReleaseListWriter(results))
+					}
+				}
+
 				for _, res := range results {
 					fmt.Fprintln(out, res.Name)
 				}

cmd/helm/list_test.go

@@ -198,6 +198,16 @@ func TestListCmd(t *testing.T) {
 		cmd:    "list --short",
 		golden: "output/list-short.txt",
 		rels:   releaseFixture,
+	}, {
+		name:   "list releases in short output format",
+		cmd:    "list --short --output yaml",
+		golden: "output/list-short-yaml.txt",
+		rels:   releaseFixture,
+	}, {
+		name:   "list releases in short output format",
+		cmd:    "list --short --output json",
+		golden: "output/list-short-json.txt",
+		rels:   releaseFixture,
 	}, {
 		name:   "list superseded releases",
 		cmd:    "list --superseded",