translate grouped error message for url already posted days ago

app/models/story.rb

@@ -71,8 +71,7 @@ class Story < ActiveRecord::Base
         if self.new_record? && (s = Story.find_similar_by_url(self.url))
           self.already_posted_story = s
           if s.is_recent?
-            errors.add(:url, "has already been submitted within the past " <<
-              "#{RECENT_DAYS} days")
+            errors.add(:url, I18n.t('models.story.alreadysubmitted', :days => "#{RECENT_DAYS}"))
           end
         end
       else

config/locales/en.yml

@@ -41,6 +41,7 @@ en:
       unmerged: "unmerged from another story"
       changedfromto: "changed %{story} from %{stfrom} to %{stto}"
       nonmedia: "Must have at least one non-media (PDF, video) tag. If no tags apply to your content, it probably doesn't belong here."
+      alreadysubmitted: "Url has already been submitted within the past %{days} days."
     vote:
       offtopicvote: "Off-topic"
       incorrectvote: "Incorrect"

config/locales/fr.yml

@@ -53,6 +53,7 @@ fr:
       unmerged: "dé-fusionnée depuis une autre info"
       changedfromto: "%{story} changée de %{stfrom} à %{stto}"
       nonmedia: "Une étiquette autre que PDF ou video doit être présente"
+      alreadysubmitted: "a déjà été proposée il y a %{days} jours"
     vote:
       offtopicvote: "Hors-sujet"
       incorrectvote: "Incorrecte"