Typehint

Signed-off-by: John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>

lib/private/L10N/Factory.php

@@ -251,7 +251,7 @@ class Factory implements IFactory {
 	 * @param string $locale
 	 * @return null|string
 	 */
-	public function findLanguageFromLocale($app = 'core', $locale = null) {
+	public function findLanguageFromLocale(string $app = 'core', string $locale = null) {
 		if ($this->languageExists($app, $locale)) {
 			return $locale;
 		}
@@ -261,7 +261,6 @@ class Factory implements IFactory {
 		if ($this->languageExists($app, $locale)) {
 			return $locale;
 		}
-
 	}
 
 	/**

lib/public/L10N/IFactory.php

@@ -61,7 +61,7 @@ interface IFactory {
 	 * @return null|string
 	 * @since 15.0.0
 	 */
-	public function findLanguageFromLocale($app = 'core', $locale = null);
+	public function findLanguageFromLocale(string $app = 'core', string $locale = null);
 
 	/**
 	 * Find all available languages for an app