make trash-prune less noisy on missing perms

.local/libexec/cron/trash-prune

@@ -12,14 +12,17 @@ getfsroot() {
 
 list_trash_dirs() {
 	for mnt in $(findmnt -Py -t "$types"); do
-		eval $mnt
+		eval "$mnt"
+		# shellcheck disable=2153
 		if [ "$TARGET" = "$(getfsroot "${XDG_DATA_HOME:-$HOME/.local/share}")" ]; then
-			echo "${XDG_DATA_HOME:-$HOME/.local/share}/Trash"
+            target=${XDG_DATA_HOME:-$HOME/.local/share}/Trash
 		elif [ "$TARGET" = "/" ]; then
-			echo "/.Trash"
+            target=/.Trash
 		else
-			echo "${TARGET}/.Trash"
+            target=${TARGET}/.Trash
 		fi
+        [ -w "$target" ] && { echo "$target"; return; }
+        echo
 	done
 }