Avoid using clap deprecated features (#787)

The PR will fix #786 .

In order to minimize future security risks and maintain ease of use, it
is recommended to avoid using deprecated features of clap.

I have refactored the code so that no warning appears when the following
command is executed:

```sh
cargo check --features clap/deprecated
```

Author: sudame

CHANGELOG.md

@@ -21,6 +21,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   based on the file extension: `exe`, `msi`, `bat` and `ps1`.
   [`LS_COLORS`](README.md#Colors) can be used to customize.
 - Handle dereference (-L) with broken symlink from [r3dArch](https://github.com/r3dArch)
+- Avoid using Clap's deprecated structs and functions [sudame](https://github.com/sudame)
 
 ## [0.23.1] - 2022-09-13