Merge pull request #995 from nextcloud/backport/990/stable23

[stable23] missing $prec

Author: ArtificialOwl

lib/Tools/Traits/TConsoleTree.php

@@ -60,6 +60,7 @@ public function drawTree(
 		);
 
 		$output = new ConsoleOutput();
+		$prec = 0;
 
 		while (true) {
 			$node = $root->current();