Fix for Ruby 1.9 strings.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3798 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/watchers_controller.rb

@@ -83,7 +83,7 @@ private
         replace_ids = [params[:replace]]
       end
     else
-      replace_ids = 'watcher'
+      replace_ids = ['watcher']
     end
     respond_to do |format|
       format.html { redirect_to :back }