aRomans-MacBook-Air:common holms$ cat locale.sls
{% set locales = [
     'ar_AE.UTF-8 UTF-8',
     'ar_SA.UTF-8 UTF-8',
     'bn_BD UTF-8',
     'cs_CZ.UTF-8 UTF-8',
     'da_DK.UTF-8 UTF-8',
     'de_DE.UTF-8 UTF-8',
     'en_GB.UTF-8 UTF-8',
     'en_CA.UTF-8 UTF-8',
     'en_AU.UTF-8 UTF-8',
     'en_NZ.UTF-8 UTF-8',
     'en_SG.UTF-8 UTF-8',
     'en_PH.UTF-8 UTF-8',
     'en_ZA.UTF-8 UTF-8',
     'es_ES.UTF-8 UTF-8',
     'es_MX.UTF-8 UTF-8',
     'fi_FI.UTF-8 UTF-8',
     'fr_FR.UTF-8 UTF-8',
     'hi_IN UTF-8',
     'hu_HU.UTF-8 UTF-8',
     'id_ID.UTF-8 UTF-8',
     'it_IT.UTF-8 UTF-8',
     'ja_JP.UTF-8 UTF-8',
     'ko_KR.UTF-8 UTF-8',
     'nl_NL.UTF-8 UTF-8',
     'nn_NO.UTF-8 UTF-8',
     'pl_PL.UTF-8 UTF-8',
     'pt_BR.UTF-8 UTF-8',
     'pt_PT.UTF-8 UTF-8',
     'ru_RU.UTF-8 UTF-8',
     'sv_SE.UTF-8 UTF-8',
     'th_TH.UTF-8 UTF-8',
     'tl_PH.UTF-8 UTF-8',
     'vi_VN UTF-8',
     'zh_CN.UTF-8 UTF-8',
     'zh_TW.UTF-8 UTF-8',
     'zh_HK.UTF-8 UTF-8',
     'de_CH ISO-8859-1',
     'he_IL.UTF-8 UTF-8',
     'ms_MY.UTF-8 UTF-8'
] %}

{% for locale in locales %}
{{ locale }}:
  locale.present
{% endfor %}

en_US.UTF-8:
  locale.systemroot@zipier:~# locale-gen "ms_MY.UTF-8 UTF-8"
root@zipier:~#
root@zipier:~# locale-gen
Generating locales...
  en_US.UTF-8... up-to-date
Generation complete.
root@zipier:~# locale-gen ms_MY.UTF-8 UTF-8
root@zipier:~# locale-gen
Generating locales...
  en_US.UTF-8... up-to-date
  ms_MY.UTF-8... done
Generation complete.