Use the existing FileUtil::addTrailingSlash

diff --git a/wcfsetup/install/files/lib/system/cache/source/DiskCacheSource.class.php b/wcfsetup/install/files/lib/system/cache/source/DiskCacheSource.class.php
index 12f4aa9f15308a20950cc90debacbf09abc06c56..dd89d280f6d78e29549d008c4692d7195c867ade 100644 (file)
--- a/wcfsetup/install/files/lib/system/cache/source/DiskCacheSource.class.php
+++ b/wcfsetup/install/files/lib/system/cache/source/DiskCacheSource.class.php
@@ -87,9 +87,7 @@ class DiskCacheSource implements CacheSource {
         */
        public function clear($directory, $filepattern, $forceDelete = false) {
                $filepattern = str_replace('*', '.*', str_replace('.', '\.', $filepattern));
-               if (substr($directory, -1) != '/') {
-                       $directory .= '/';      
-               }
+               $directory = FileUtil::addTrailingSlash($directory);
                
                if (@file_exists($directory)) {
                        $dirh = opendir($directory);