yaml is dumb.

Author: jordansissel

locales/en.yml

@@ -35,18 +35,18 @@ en:
         Valid plugin types are 'input' 'filter' and 'output'
     plugin:
       milestone:
-        0: >-
+        "0": >-
           Using milestone 0 %{type} plugin '%{name}'. This plugin isn't well
           supported by the commnity and likely has no maintainer. For more
           information on plugin milestones, see
           http://logstash.net/docs/%{LOGSTASH_VERSION}/plugin-milestones
-        1: >-
+        "1": >-
           Using milestone 1 %{type} plugin '%{name}'. This plugin should work,
           but would benefit from use by folks like you. Please let us know if you
           find bugs or have suggestions on how to improve this plugin.  For more
           information on plugin milestones, see
           http://logstash.net/docs/%{LOGSTASH_VERSION}/plugin-milestones
-        2: >-
+        "2": >-
           Using milestone 2 %{type} plugin '%{name}'. This plugin should be
           stable, but if you see strange behavior, please let us know!
           For more information on plugin milestones, see