message: jest-haste-map fix canUseWatchman freeze
diff: @@ -89,7 +89,7 @@ const VERSION = require('../package.json').version;
  const canUseWatchman = ((): boolean => {
  try {
  - execSync('watchman version', {stdio: ['ignore']});
  + execSync('watchman --version', {stdio: ['ignore']});
  return true;
  } catch (e) {}
  return false;
  