add empty line after guard clause to app/models/watcher.rb

git-svn-id: http://svn.redmine.org/redmine/trunk@20239 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/watcher.rb

@@ -60,9 +60,11 @@ class Watcher < ActiveRecord::Base
 
   def self.prune_single_user(user, options={})
     return unless user.is_a?(User)
+
     pruned = 0
     where(:user_id => user.id).each do |watcher|
       next if watcher.watchable.nil?
+
       if options.has_key?(:project)
         unless watcher.watchable.respond_to?(:project) &&
                  watcher.watchable.project == options[:project]