Rails3: use String#html_safe for parent_project_select_tag() at ProjectsHelper.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@6492 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/helpers/projects_helper.rb

@@ -46,7 +46,7 @@ module ProjectsHelper
     options = ''
     options << "<option value=''></option>" if project.allowed_parents.include?(nil)
     options << project_tree_options_for_select(project.allowed_parents.compact, :selected => selected)
-    content_tag('select', options, :name => 'project[parent_id]', :id => 'project_parent_id')
+    content_tag('select', options.html_safe, :name => 'project[parent_id]', :id => 'project_parent_id')
   end
 
   # Renders a tree of projects as a nested set of unordered lists