Fixed typo in BaseFileHelper::findFiles() docs (yiisoft#14200) [skip ci]

framework/helpers/BaseFileHelper.php

@@ -383,7 +383,7 @@ public static function removeDirectory($dir, $options = [])
      *   If the pattern does not contain a slash (`/`), it is treated as a shell glob pattern
      *   and checked for a match against the pathname relative to `$dir`.
      *   Otherwise, the pattern is treated as a shell glob suitable for consumption by `fnmatch(3)`
-     *   `with the `FNM_PATHNAME` flag: wildcards in the pattern will not match a `/` in the pathname.
+     *   with the `FNM_PATHNAME` flag: wildcards in the pattern will not match a `/` in the pathname.
      *   For example, `views/*.php` matches `views/index.php` but not `views/controller/index.php`.
      *   A leading slash matches the beginning of the pathname. For example, `/*.php` matches `index.php` but not `views/start/index.php`.
      *   An optional prefix `!` which negates the pattern; any matching file excluded by a previous pattern will become included again.