Fix RRD connector metric DS name suffix.
Fix RRD connector metric DS name suffix.

facette/facette,psytra/facette,vovkasm/facette,Skrupellos/facette,iaean/facette,iaean/facette,githubert/facette,yonglehou/facette,facette/facette,facette/facette,yonglehou/facette,psytra/facette,yonglehou/facette,Skrupellos/facette,hirocaster/facette,iaean/facette,facette/facette,vovkasm/facette,githubert/facette,githubert/facette,vovkasm/facette,hirocaster/facette,hirocaster/facette,psytra/facette,Skrupellos/facette