message: Update util.js
  Typo fix
diff: @@ -82,7 +82,7 @@ export function cached<F: Function> (fn: F): F {
  }
  /**
  - * Camelize a hyphen-delmited string.
  + * Camelize a hyphen-delimited string.
  */
  const camelizeRE = /-(\w)/g
  export const camelize = cached((str: string): string => {
  