apache: fix combined_extended compatibility with Ubuntu 20.04

Author: Firefishy

cookbooks/apache/templates/default/httpd.conf.erb

@@ -65,4 +65,8 @@ AddType application/x-xz .xz
 BufferedLogs <%= node[:apache][:buffered_logs] ? "On" : "Off" %>
 
 # Define an extended log format that includes request time and SSL details
+<% if node[:lsb][:release].to_f >= 22.04 -%>
 LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\" %Dus %{SSL_PROTOCOL}x %{SSL_CIPHER}x" combined_extended
+<% else -%>
+LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\" %Dus" combined_extended
+<% end -%>