en.yml in grape-0.9.0

- old
+ new

@@ -1,18 +1,18 @@
 en:
   grape:
     errors:
-      format: ! '%{attribute} %{message}'
+      format: ! '%{attributes} %{message}'
       messages:
         coerce: 'is invalid'
         presence: 'is missing'
         regexp: 'is invalid'
         values: 'does not have a valid value'
         missing_vendor_option:
           problem: 'missing :vendor option.'
           summary: 'when version using header, you must specify :vendor option. '
-          resolution: "eg: version 'v1', :using => :header, :vendor => 'twitter'"
+          resolution: "eg: version 'v1', using: :header, vendor: 'twitter'"
         missing_mime_type:
           problem: 'missing mime type for %{new_format}'
           resolution:
             "you can choose existing mime type from Grape::ContentTypes::CONTENT_TYPES
             or add your own with content_type :%{new_format}, 'application/%{new_format}'
@@ -27,6 +27,8 @@
           resolution: 'available strategy for :using is :path, :header, :param'
         unknown_validator: 'unknown validator: %{validator_type}'
         unknown_options: 'unknown options: %{options}'
         incompatible_option_values: '%{option1}: %{value1} is incompatible with %{option2}: %{value2}'
         mutual_exclusion: 'are mutually exclusive'
-        exactly_one: "- exactly one parameter must be provided"
+        at_least_one: 'are missing, at least one parameter must be provided'
+        exactly_one: 'are missing, exactly one parameter must be provided'
+