ensure it works on 3.0

app/views/kaminari/_paginator.html.erb

@@ -6,7 +6,7 @@
     remote:        data-remote
     paginator:     the paginator that renders the pagination tags inside
 -%>
-<% paginator.render do -%>
+<%= paginator.render do -%>
   <nav class='pagination'>
     <%= current_page > 1 ? prev_link_tag : prev_span_tag %>
     <% each_page do |page| -%>

app/views/kaminari/_paginator.html.haml

@@ -5,7 +5,7 @@
     per_page:      number of items to fetch per page
     remote:        data-remote
     paginator:     the paginator that renders the pagination tags inside
-- paginator.render do
+= paginator.render do
   %nav.pagination
     = current_page > 1 ? prev_link_tag : prev_span_tag
     - each_page do |page|

lib/kaminari/tags.rb

@@ -79,6 +79,7 @@ module Kaminari
       # render given block as a view template
       def render(&block)
         instance_eval &block if @options[:num_pages] > 1
+        nil
       end
 
       # enumerate each page providing PageProxy object as the block parameter