Minor - Added comments

main/inc/lib/fileUpload.lib.php

@@ -411,19 +411,20 @@ function handle_uploaded_document(
  *
  * @see    - enough_size() uses  dir_total_space() function
  */
-function enough_size($file_size, $dir, $max_dir_space) {
-    //if dir is archive ignore
+function enough_size($file_size, $dir, $max_dir_space)
+{
+    // If the directory is the archive directory, safely ignore the size limit
     if (api_get_path(SYS_ARCHIVE_PATH) == $dir) { 
         return true; 
     }
 
-	if ($max_dir_space) {
-		$already_filled_space = dir_total_space($dir);
-		if (($file_size + $already_filled_space) > $max_dir_space) {
-			return false;
-		}
-	}
-	return true;
+    if ($max_dir_space) {
+        $already_filled_space = dir_total_space($dir);
+        if (($file_size + $already_filled_space) > $max_dir_space) {
+            return false;
+        }
+    }
+    return true;
 }