apply review suggestions

main.go

@@ -70,7 +70,7 @@ func main() {
 func loadConfiguration(config, yamlConfig string, extraFlags *pflag.FlagSet, args []string) (*options.Options, error) {
 	opts, err := loadLegacyOptions(config, extraFlags, args)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("couldn't load legacy options: %w", err)
 	}
 
 	if yamlConfig != "" {

pkg/apis/options/load.go

@@ -83,12 +83,11 @@ func Decode(input interface{}, result interface{}) error {
 		DecodeHook:           mapstructure.ComposeDecodeHookFunc(toDurationHookFunc()),
 		Metadata:             nil,    // Don't track any metadata
 		Result:               result, // Decode the result into the prefilled options
-		TagName:              "json", // Parse all fields that use the yaml tag
+		TagName:              "json", // Parse all fields that use the json tag
 		ZeroFields:           false,  // Don't clean the default values from the result map (options)
 		ErrorUnused:          true,   // Throw an error if keys have been used that aren't mapped to any struct fields
-		IgnoreUntaggedFields: true,   // Ignore fields in structures that aren't tagged with yaml
+		IgnoreUntaggedFields: true,   // Ignore fields in structures that aren't tagged with json
 	})
-
 	if err != nil {
 		return fmt.Errorf("error creating decoder for config: %w", err)
 	}