Follow-up for 89efcfcf to properly fix nested arrays

db/migrate/20150729150523_migrate_auto_close_posts.rb

@@ -4,20 +4,20 @@ class MigrateAutoClosePosts < ActiveRecord::Migration[4.2]
   def up
     I18n.overrides_disabled do
       strings = []
-      %w(days hours lastpost_days lastpost_hours lastpost_minutes).map do |k|
-        strings += I18n.t("topic_statuses.autoclosed_enabled_#{k}").values.map { |s| s.sub("%{count}", "\\d+") }
+
+      %w(days hours lastpost_days lastpost_hours lastpost_minutes).each do |k|
+        I18n.t("topic_statuses.autoclosed_enabled_#{k}").values.each do |s|
+          strings << s.sub("%{count}", "\\d+")
+        end
       end
 
-      sql = <<~SQL
+      execute <<~SQL
         UPDATE posts
-        SET action_code = 'autoclosed.enabled',
-            post_type = 3
-        WHERE post_type = 2 AND (
-          #{strings.map { |s| "raw ~* #{ActiveRecord::Base.connection.quote(s)}" }.join(' OR ')}
-        )
+           SET action_code = 'autoclosed.enabled'
+             , post_type = 3
+         WHERE post_type = 2
+           AND (#{strings.map { |s| "raw ~* #{ActiveRecord::Base.connection.quote(s)}" }.join(' OR ')})
       SQL
-
-      execute sql
     end
   end
 end