class mariadb::config dedup with tags
-------------------------------------
./test_pcc.py mariadb::config                                               
an-coord1001.eqiad.wmnet
analytics1030.eqiad.wmnet
cloudservices1004.wikimedia.org
cloudservices2002-dev.wikimedia.org
cumin1001.eqiad.wmnet
db1102.eqiad.wmnet
db1108.eqiad.wmnet
db1109.eqiad.wmnet
db1113.eqiad.wmnet
db1114.eqiad.wmnet
db1115.eqiad.wmnet
db1117.eqiad.wmnet
db1124.eqiad.wmnet
db1128.eqiad.wmnet
db1132.eqiad.wmnet
db1133.eqiad.wmnet
db1135.eqiad.wmnet
db2093.codfw.wmnet
db2132.codfw.wmnet
db2133.codfw.wmnet
db2134.codfw.wmnet
db2135.codfw.wmnet
dbstore1005.eqiad.wmnet
es1022.eqiad.wmnet
es2004.codfw.wmnet
labsdb1010.eqiad.wmnet
labsdb1011.eqiad.wmnet
labsdb1012.eqiad.wmnet
matomo1001.eqiad.wmnet
mwmaint2001.codfw.wmnet
pc1010.eqiad.wmnet

class mariadb::config dedup without tags
-------------------------------------
./test_pcc.py mariadb::config                                             
an-coord1001.eqiad.wmnet
analytics1030.eqiad.wmnet
cloudservices1003.wikimedia.org
cumin1001.eqiad.wmnet
db1107.eqiad.wmnet
dbstore1003.eqiad.wmnet
es1011.eqiad.wmnet
labsdb1011.eqiad.wmnet
matomo1001.eqiad.wmnet
mwmaint2001.codfw.wmnet
pc2007.codfw.wmnet