changed to concat version 1.x.x

Author: awegmann

metadata.json

@@ -68,7 +68,7 @@
     },
     {
       "name": "puppetlabs/concat",
-      "version_requirement": ">= 2.0.0"
+      "version_requirement": ">= 1.0.0"
     }
   ]
 }