fix duplicate <main> ubuntu backports entry

diff --git a/templates/Ubuntu/sources.list.erb b/templates/Ubuntu/sources.list.erb
index c1a611592e2a55ef941aa41d498511ec1db5c363..8d2585d5b48a03f5eacc77f8e6afca77f6bcd6b0 100644 (file)
--- a/templates/Ubuntu/sources.list.erb
+++ b/templates/Ubuntu/sources.list.erb
@@ -20,7 +20,7 @@ deb-src <%= ubuntu_url %> <%= codename %>-security <%= lrepos %>
 <% end -%>
 
 # backports
-deb <%= ubuntu_url %> <%= codename %>-backports main <%= lrepos %>
+deb <%= ubuntu_url %> <%= codename %>-backports <%= lrepos %>
 <% if include_src -%>
 deb-src <%= ubuntu_url %> <%= codename %>-backports <%= lrepos %>
 <% end -%>