message: Fix sudo-prompt promisification
  Changelog-entry: Fix sudo-prompt promisification
  Change-type: patch
diff: @@ -29,7 +29,10 @@ import { tmpFileDisposer } from './utils';
  const execAsync = promisify(childProcess.exec);
  const execFileAsync = promisify(childProcess.execFile);
  -const sudoExecAsync = promisify(sudoPrompt.exec);
  +// sudo-prompt's exec callback is function(error, stdout, stderr) so we need multiArgs
  +const sudoExecAsync = Bluebird.promisify(sudoPrompt.exec, {
  + multiArgs: true,
  +}) as (cmd: string, options: any) => Bluebird<[string, string]>;
  /**
  * @summary The user id of the UNIX "superuser"
  