调整 WithArgs 方法，支持多参数传递

Author: FishGoddess

README.en.md

@@ -44,7 +44,7 @@ func main() {
 
 	// Also, we provide some useful information carrier for you.
 	// For examples, you can carry an error, caller information or some args.
-	// Remember args should be a field slice with string keys and any values.
+	// Remember the count of args should be odd and their keys should be a string.
 	err = errors.Wrap(9999, "io timeout").With(io.EOF).WithCaller().WithArgs("user_id", 123, "timeout", "200ms")
 	fmt.Println(err)
 	fmt.Println(errors.CodeMessage(err, 6666, "default message"))

README.md

@@ -44,7 +44,7 @@ func main() {
 
 	// Also, we provide some useful information carrier for you.
 	// For examples, you can carry an error, caller information or some args.
-	// Remember args should be a field slice with string keys and any values.
+	// Remember the count of args should be odd and their keys should be a string.
 	err = errors.Wrap(9999, "io timeout").With(io.EOF).WithCaller().WithArgs("user_id", 123, "timeout", "200ms")
 	fmt.Println(err)
 	fmt.Println(errors.CodeMessage(err, 6666, "default message"))

_examples/basic.go

@@ -30,7 +30,7 @@ func main() {
 
 	// Also, we provide some useful information carrier for you.
 	// For examples, you can carry an error, caller information or some args.
-	// Remember args should be a field slice with string keys and any values.
+	// Remember the count of args should be odd and their keys should be a string.
 	err = errors.Wrap(9999, "io timeout").With(io.EOF).WithCaller().WithArgs("user_id", 123, "timeout", "200ms")
 	fmt.Println(err)
 	fmt.Println(errors.CodeMessage(err, 6666, "default message"))