message: Fixed deprecations in PlaceholderProcessor.ts
diff: @@ -107,7 +107,7 @@ export class PlaceholderProcessor implements CatalogProcessor {
  return [data, false];
  }
  - const resolverKey = keys[0].substr(1);
  + const resolverKey = keys[0].substring(1);
  const resolverValue = data[keys[0]];
  const resolver = this.options.resolvers[resolverKey];
  