Update filesystem_helper.php

Author: andifahruddinakas

system/Helpers/filesystem_helper.php

@@ -260,13 +260,13 @@ function get_dir_file_info(string $sourceDir, bool $topLevelOnly = true, bool $r
         try {
             $fp = opendir($sourceDir);
 
-            // reset the array and make sure $source_dir has a trailing slash on the initial call
+            // reset the array and make sure $sourceDir has a trailing slash on the initial call
             if ($recursion === false) {
                 $fileData  = [];
                 $sourceDir = rtrim(realpath($sourceDir), DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
             }
 
-            // Used to be foreach (scandir($source_dir, 1) as $file), but scandir() is simply not as fast
+            // Used to be foreach (scandir($sourceDir, 1) as $file), but scandir() is simply not as fast
             while (false !== ($file = readdir($fp))) {
                 if (is_dir($sourceDir . $file) && $file[0] !== '.' && $topLevelOnly === false) {
                     get_dir_file_info($sourceDir . $file . DIRECTORY_SEPARATOR, $topLevelOnly, true);