Add backwards compatibility for older rsyslog releases

attributes/default.rb

@@ -100,6 +100,11 @@ else
   }
 end
 
+# rsyslog 3/4 do not support the new :omusrmsg:* format and need * instead
+if (node['platform'] == 'ubuntu' && node['platform_version'].to_i < 12) || (node['platform_family'] == 'rhel' && node['platform_version'].to_i < 6)
+  default['rsyslog']['default_facility_logs']['*.emerg'] = '*'
+end
+
 # platform specific attributes
 case node['platform']
 when 'ubuntu'