--- ./tree.c.orig	2024-03-01 04:25:01.147867969 +0000
+++ ./tree.c	2024-03-01 04:26:14.158072550 +0000
@@ -642,6 +642,8 @@
 	"  --charset X   Use charset X for terminal/HTML and indentation line output.\n"
 	"  --filelimit # Do not descend dirs with more than # files in them.\n"
 	"  -o filename   Output to file instead of stdout.\n"
+       "  --du          Print directory sizes.\n"
+       "  --prune       Prune empty directories from the output.\n"
 	"  ------- File options -------\n"
 	"  -q            Print non-printable characters as '?'.\n"
 	"  -N            Print non-printable characters as is.\n"