5. X and 6 X performs wildcard recursive directory deletion, which is invalid

Files tree
```
files
  subDir
    folder1
      child1.txt
      child1.css
    folder2
      folder21
        child21.txt
        child21.png
    file0.txt
    file0.css
```

Command only delete "child1.txt"
```bash
del.sync(['./files/subDir/**/*.txt'])
```