app/views/member_mailer/updated_global.text.erb
<%=
I18n.t(:"mail_member_updated_global.body.updated_by.#{@message.present? ? 'with_message' : 'without_message'}",
user: User.current.name)
%>
<%= @message %>
<%= I18n.t(:'mail_member_updated_global.body.roles') %>
<% @roles.each do |role| %>
* <%= h(role.name) %>
<% end %>