make some snippet content configurable

main.go

@@ -11,7 +11,11 @@ import (
 
 func getConfigFromEnv(string item) {
 	var res = ""
-	configarr = strings.Split(os.Getenv("CONFIG_ENVVAR", "ADDRESS,INITIALCOST,MONTHLYCOST"), ',')
+	value := os.Getenv("CONFIG_ENVVAR")
+	if value == "" {
+		value = "ADDRESS,INITIALCOST,MONTHLYCOST"
+	}
+	configarr = strings.Split(value, ',')
 	if len(configarr) < 3 {
 		logit("CONFIG_ENVVAR has less than 3 elements")
 	}