Use the actual filename provided when reading config.

conf/conf.go

@@ -7,8 +7,7 @@ import (
 
 func ReadConfig(filename string) error {
 
-	viper.SetConfigName(filename)
-	viper.AddConfigPath(".")
+	viper.SetConfigFile(filename)
 	err := viper.ReadInConfig()
 	if err != nil {
 		return errors.New(err.Error() + ("Fatal error in config file."))