add config name

Author: paulbrodner

lib/devOn/provision.rb

@@ -4,7 +4,7 @@ def use_file(config, filename)
       return if config.name.eql? "default"
       raise "No configs files found for: #{config.name}" if !config.files
       f = config.files.select { |f| f.include?(filename) }.first
-      raise "File #{filename} not found in configs folder of the script" if f.nil?
+      raise "File #{filename} not found in configs folder [#{config.name}] of the script" if f.nil?
       f
     end