redmine/app/views/mailer/wiki_content_updated.text.erb

<%= l(:mail_body_wiki_content_updated, :id => h(@wiki_content.page.pretty_title),
                                       :author => h(@wiki_content.author)) %>
<%= @wiki_content.comments %>

<%= @wiki_content.page.pretty_title %>:
<%= @wiki_content_url %>
<%= l(:label_view_diff) %>:
<%= @wiki_diff_url %>