yarn.lock

    string-width "^3.0.0"
    which-module "^2.0.0"
    y18n "^4.0.0"
    yargs-parser "^13.1.0"

yargs@^13.3.0:
  version "13.3.0"
  resolved "https://registry.yarnpkg.com/yargs/-/yargs-13.3.0.tgz#4c657a55e07e5f2cf947f8a366567c04a0dedc83"
  integrity sha512-2eehun/8ALW8TLoIl7MVaRUrg+yCnenu8B4kBlRxj3GJGDKU1Og7sMXPNm1BYyM1DOJmTZ4YeN/Nwxv+8XJsUA==
  dependencies:
    cliui "^5.0.0"
    find-up "^3.0.0"
    get-caller-file "^2.0.1"
    require-directory "^2.1.1"
    require-main-filename "^2.0.0"
    set-blocking "^2.0.0"
    string-width "^3.0.0"
    which-module "^2.0.0"
    y18n "^4.0.0"
    yargs-parser "^13.1.1"

zlibjs@^0.3.1:
  version "0.3.1"
  resolved "https://registry.yarnpkg.com/zlibjs/-/zlibjs-0.3.1.tgz#50197edb28a1c42ca659cc8b4e6a9ddd6d444554"
  integrity sha1-UBl+2yihxCymWcyLTmqd3W1ERVQ=