Merge branch 'v0.21.x' into master

src/storage/plugins/SmbclientStorage.cxx

@@ -151,11 +151,9 @@ SmbclientStorage::OpenDirectory(std::string_view uri_utf8)
 
 gcc_pure
 static bool
-SkipNameFS(const char *name) noexcept
+SkipNameFS(PathTraitsFS::const_pointer name) noexcept
 {
-	return name[0] == '.' &&
-		(name[1] == 0 ||
-		 (name[1] == '.' && name[2] == 0));
+	return PathTraitsFS::IsSpecialFilename(name);
 }
 
 SmbclientDirectoryReader::~SmbclientDirectoryReader()