Improve: config convergent and add log-level

config/utils.go

@@ -0,0 +1,12 @@
+package config
+
+import (
+	"strings"
+)
+
+func trimArr(arr []string) (r []string) {
+	for _, e := range arr {
+		r = append(r, strings.Trim(e, " "))
+	}
+	return
+}