Fixes some type casting inside Config::set()

Signed-off-by: Jon Stovell <jonstovell@gmail.com>

Author: Sesquipedalian

Sources/Config.php

@@ -998,23 +998,23 @@ public static function set(array $settings): void
 		}
 
 		// Make sure the paths are correct... at least try to fix them.
-		if (empty(self::$boarddir) || !is_dir(realpath(self::$boarddir))) {
+		if (empty(self::$boarddir) || !is_dir((string) realpath(self::$boarddir))) {
 			self::$boarddir = !empty($_SERVER['SCRIPT_FILENAME']) ? \dirname(realpath($_SERVER['SCRIPT_FILENAME'])) : \dirname(__DIR__);
 		}
 
-		if ((empty(self::$sourcedir) || !is_dir(realpath(self::$sourcedir))) && is_dir(self::$boarddir . '/Sources')) {
+		if ((empty(self::$sourcedir) || !is_dir((string) realpath(self::$sourcedir))) && is_dir(self::$boarddir . '/Sources')) {
 			self::$sourcedir = self::$boarddir . '/Sources';
 		}
 
-		if ((empty(self::$vendordir) || !is_dir(realpath(self::$vendordir))) && is_dir(self::$boarddir . '/vendor')) {
+		if ((empty(self::$vendordir) || !is_dir((string) realpath(self::$vendordir))) && is_dir(self::$boarddir . '/vendor')) {
 			self::$vendordir = self::$boarddir . '/vendor';
 		}
 
-		if ((empty(self::$packagesdir) || !is_dir(realpath(self::$packagesdir))) && is_dir(self::$boarddir . '/Packages')) {
+		if ((empty(self::$packagesdir) || !is_dir((string) realpath(self::$packagesdir))) && is_dir(self::$boarddir . '/Packages')) {
 			self::$packagesdir = self::$boarddir . '/Packages';
 		}
 
-		if ((empty(self::$languagesdir) || !is_dir(realpath(self::$languagesdir))) && is_dir(self::$boarddir . '/Languages')) {
+		if ((empty(self::$languagesdir) || !is_dir((string) realpath(self::$languagesdir))) && is_dir(self::$boarddir . '/Languages')) {
 			self::$languagesdir = self::$boarddir . '/Languages';
 		}