Make this work with a non-standard LOCALBASE.

external/mit/ctwm/libexec/ctwm_app_menu

@@ -1,5 +1,5 @@
 #!/bin/sh
-#	$NetBSD: ctwm_app_menu,v 1.2 2020/10/12 11:07:24 nia Exp $
+#	$NetBSD: ctwm_app_menu,v 1.3 2021/03/01 15:40:40 nia Exp $
 #
 # Copyright (c) 2020 The NetBSD Foundation, Inc.
 # All rights reserved.
@@ -28,13 +28,14 @@
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.
 #
+LOCALBASE=$(pkg_info -Q LOCALBASE pkg_install 2>/dev/null || echo /usr/pkg)
 OFS=$IFS
 IFS='
 '
 printf 'menu "appmenu"\n'
 printf '{\n'
 printf '\t"Applications"\tf.title\n'
-for app in $(find /usr/pkg/share/applications -name '*.desktop');
+for app in $(find $LOCALBASE/share/applications -name '*.desktop');
 do
 	name=""
 	exec=""