limit number of synchronous saved search updates

script/fixes/056_message_nonascii_usernames.rb

@@ -0,0 +1,14 @@
+#!/usr/bin/env ruby
+
+require File.expand_path(File.join(File.dirname(__FILE__), '..', '..', 'config', 'environment'))
+
+CurrentUser.user = User.system
+CurrentUser.ip_addr = "127.0.0.1"
+
+User.where("name !~ ?", "^[ -~]*$").find_each do |user|
+  Dmail.create_automated(
+    :to_id => user.id,
+    :title => "Name change required",
+    :body => "Because of issues with users exploiting various Unicode characters in their name, in the future all non-ASCII characters and any non-printable characters will be forbidden. This means you will have to change your name. You can visit \"this page\":/user_name_change_requests/new to change your name. You will have 30 days to change your name or else your account will be banned."
+  )
+end