Use travis encrypt to set multiple notifications.email.recipients

Just wondering how to set multiple email addresses into the notifications.emails.recipients array in .travis.yml. I assume it should be as follows but I’m not sure since, obviously, I cannot check it:

$ travis encrypt "alice@example.org bob@example.org" --add notifications.email.recipients

It produces the following output in .travis.yml:

notifications:
  email:
    recipients:
      secure: qwejHTxbs0leAmVKtkubEVHVg/dSRHudOmMo4pGHhino1deWZyBgXlSOXTw35Ty+SPMjK4QUsEKnzVJNm9NDtZjQIt6doC383pYfvJp7uQWFSMduihUTKmXEdsLe03uYYvJqIOTgl9Pd/NSGyb7ok4pWCVze4ZRfA1casdFjk=

Is this correct? or should I use array syntax?:

$ travis encrypt "[ \"alice@example.org\", \"bob@example.org\" ]" --add notifications.email.recipients

Oh, I missed travis encrypt --append option:

$ travis encrypt "alice@example.org" --add notifications.email.recipients
$ travis encrypt "bob@example.org" --append --add notifications.email.recipients

It generates a better output:

notifications:
  email:
    recipients:
    - secure: goUoGDMyhU89TRM4ivj1VdNamvNu0lOU/z3ca5sT7vmyqyVN54efC/g0glXKyPx8UgiV1fsYUcgnjUz3UABvenloMe4bMbt7whq1WzLYizIoaUFxX79xEAsTJ6IQbqyXUkUoClAUOxsiat+nohF6jbfwukJfpkFqVi53CxnCFG0=
    - secure: Xhcta2H3pBGd7pn6G7UPntdlhCoF6dULRmJGlqwwB+Pthz4ZpGGiI8LWh56A2lZcIjJjpmOKYHPFKN8kyyoYdcfrIY0DdiBKJiKfVObpLYm4+o9V8q6J7VxZ9MJ0YAY87aLM9oj+xKe6iWdccVAKNLph/J8Ux8R/0+41dbbHqic=