style(PHP): fix code style

Signed-off-by: Malik <3097625+dermalikmann@users.noreply.github.com>

lib/UserBackend.php

@@ -138,9 +138,9 @@ public function createUserIfNotExists(string $uid, array $attributes = []): void
 		if ($home !== '') {
 			//if attribute's value is an absolute path take this, otherwise append it to data dir
 			//check for / at the beginning or pattern c:\ resp. c:/
-			if ('/' !== $home[0]
-				&& !(3 < strlen($home) && ctype_alpha($home[0])
-					&& $home[1] === ':' && ('\\' === $home[2] || '/' === $home[2]))
+			if ($home[0] !== '/'
+				&& !(strlen($home) > 3 && ctype_alpha($home[0])
+					&& $home[1] === ':' && ($home[2] === '\\' || $home[2] === '/'))
 			) {
 				$home = $this->config->getSystemValue('datadirectory',
 					\OC::$SERVERROOT.'/data') . '/' . $home;