Switches group icon in members box to SVG icon (#41711, #23980).

git-svn-id: https://svn.redmine.org/redmine/trunk@23222 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/helpers/application_helper.rb

@@ -76,7 +76,7 @@ module ApplicationHelper
     end
 
     css_classes += " #{options[:class]}" if css_classes && options[:class].present?
-    url ? link_to(name, url, :class => css_classes) : name
+    url ? link_to(principal_icon(principal.class.name.downcase).to_s + name, url, :class => css_classes) : name
   end
 
   # Displays a link to edit group page if current user is admin