[ci skip] Add space after erb block.

activesupport/lib/active_support/core_ext/string/output_safety.rb

@@ -13,7 +13,7 @@ module Util
     # This method is also aliased as <tt>h</tt>.
     #
     # In your ERB templates, use this method to escape any unsafe content. For example:
-    #   <%=h @person.name %>
+    #   <%= h @person.name %>
     #
     #   puts html_escape('is a > 0 & a < 10?')
     #   # => is a &gt; 0 &amp; a &lt; 10?