Fix docblock for addFileFromStream

Signed-off-by: Daniel Kesselberg <mail@danielkesselberg.de>

lib/private/Streamer.php

@@ -148,13 +148,13 @@ class Streamer {
 	/**
 	 * Add a file to the archive at the specified location and file name.
 	 *
-	 * @param string $stream Stream to read data from
+	 * @param resource $stream Stream to read data from
 	 * @param string $internalName Filepath and name to be used in the archive.
 	 * @param int $size Filesize
 	 * @param int|bool $time File mtime as int, or false
 	 * @return bool $success
 	 */
-	public function addFileFromStream($stream, $internalName, $size, $time) {
+	public function addFileFromStream($stream, string $internalName, int $size, $time): bool {
 		$options = [];
 		if ($time) {
 			$options = [