Merge pull request #17295 from owncloud/scanfilesignature

Fix scanFile signature to avoid boring warning

apps/files_sharing/lib/external/scanner.php

@@ -48,9 +48,11 @@ class Scanner extends \OC\Files\Cache\Scanner {
 	 * @param int $reuseExisting
 	 * @param int $parentId
 	 * @param array | null $cacheData existing data in the cache for the file to be scanned
+	 * @param bool $lock set to false to disable getting an additional read lock during scanning
+	 * @param array | null $cacheData existing data in the cache for the file to be scanned
 	 * @return array an array of metadata of the scanned file
 	 */
-	public function scanFile($file, $reuseExisting = 0, $parentId = -1, $cacheData = null) {
+	public function scanFile($file, $reuseExisting = 0, $parentId = -1, $cacheData = null, $lock = true) {
 		try {
 			return parent::scanFile($file, $reuseExisting);
 		} catch (ForbiddenException $e) {