fix: change locker to avoid pointer to interface

xdg/path_darwin.go

@@ -1,5 +1,7 @@
 //go:build darwin
 // +build darwin
+// SPDX-FileCopyrightText: 2023 Jon Lundy <jon@xuu.cc>
+// SPDX-License-Identifier: BSD-3-Clause
 
 package xdg
 

xdg/path_linux.go

@@ -1,5 +1,7 @@
 //go:build linux
 // +build linux
+// SPDX-FileCopyrightText: 2023 Jon Lundy <jon@xuu.cc>
+// SPDX-License-Identifier: BSD-3-Clause
 
 package xdg
 

xdg/path_windows.go

@@ -1,5 +1,7 @@
 //go:build windows
 // +build windows
+// SPDX-FileCopyrightText: 2023 Jon Lundy <jon@xuu.cc>
+// SPDX-License-Identifier: BSD-3-Clause
 
 package xdg
 

xdg/xdg.go

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 Jon Lundy <jon@xuu.cc>
+// SPDX-License-Identifier: BSD-3-Clause
+
 package xdg
 
 import (