chore: store err separately for clarity

Signed-off-by: Jeaeun Kim <me@kyoku.dev>
(cherry picked from commit ea847fef95)

pkg/cmd/template.go

@@ -113,6 +113,7 @@ func newTemplateCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 				}
 				return err
 			}
+			savedErr := err
 
 			// We ignore a potential error here because, when the --debug flag was specified,
 			// we always want to print the YAML, even if it is not valid. The error is still returned afterwards.
@@ -187,9 +188,9 @@ func newTemplateCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 							missing = false
 						}
 						if missing {
-							if err != nil && settings.Debug {
+							if savedErr != nil && settings.Debug {
 								// assume the manifest itself is too malformed to be rendered
-								return err
+								return savedErr
 							} else {
 								return fmt.Errorf("could not find template %s in chart", f)
 							}
@@ -203,7 +204,7 @@ func newTemplateCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 				}
 			}
 
-			return err
+			return savedErr
 		},
 	}