Issue #3207111 by guilhermevp, swatichouhan012, joachim: Improve ScaffoldFilePath::__construct() documentation

(cherry picked from commit dc9a09e80226c8bc72991679f659be7a766d0e0e)

Author: alexpott

ScaffoldFilePath.php

@@ -21,7 +21,7 @@
 class ScaffoldFilePath {
 
   /**
-   * The type of scaffold file this is, 'src' or 'dest'.
+   * The type of scaffold file this is,'autoload', 'dest' or 'src'.
    *
    * @var string
    */
@@ -52,7 +52,7 @@ class ScaffoldFilePath {
    * ScaffoldFilePath constructor.
    *
    * @param string $path_type
-   *   The type of scaffold file this is, 'src' or 'dest'.
+   *   The type of scaffold file this is,'autoload', 'dest' or 'src'.
    * @param string $package_name
    *   The name of the package containing the file.
    * @param string $rel_path