anchor.diff:  
   define hostgroup {
     hostgroup_name nginx
  -  alias nginx 
  +  alias nginx
   }
   
   define hostgroup {
     hostgroup_name postgresql
  -  alias postgresql 
  +  alias postgresql
   }
   
   define hostgroup {
  
positive.code: 
  define hostgroup {
    hostgroup_name lb_internal
    alias lb_internal 
    }
  
  define hostgroup {
  
negative.code: }
  
  define hostgroup {
    hostgroup_name opscode-reporting
    alias opscode-reporting
  }
  
  define hostgroup {
    hostgroup_name lb
    alias lb
  }
  
  define hostgroup {
  