message: Fix the scale of memory limit from gb to MB
diff: @@ -79,7 +79,7 @@ if (args['v3'] && !args['version']) {
  // Suppress the banner if the message-format is set to something other than regular.
  if ((!args['message-format']) || args['message-format'] === 'regular') {
  - console.log(chalk.green.bold.underline(`AutoRest code generation utility [cli version: ${chalk.white.bold(pkgVersion)}; node: ${chalk.white.bold(process.version)}, max-memory: ${Math.round((require('v8').getHeapStatistics().heap_size_limit) / (1024 * 1024)) & 0xffffffff00} gb]`));
  + console.log(chalk.green.bold.underline(`AutoRest code generation utility [cli version: ${chalk.white.bold(pkgVersion)}; node: ${chalk.white.bold(process.version)}, max-memory: ${Math.round((require('v8').getHeapStatistics().heap_size_limit) / (1024 * 1024)) & 0xffffffff00} MB]`));
  console.log(color('(C) 2018 **Microsoft Corporation.**'));
  console.log(chalk.blue.bold.underline('https://aka.ms/autorest'));
  }
  