--- /n/sources/plan9/sys/src/cmd/disk/9660/dump9660.c	Fri Jun 28 23:19:22 2013
+++ /sys/src/cmd/disk/9660/dump9660.c	Thu Mar 11 00:00:00 2021
@@ -24,7 +24,7 @@
 {
 	if(mk9660)
 		fprint(2, "usage: disk/mk9660 [-D:] [-9cjr] "
-			"[-[bB] bootfile] [-o offset blocksize] "
+			"[-[bB] bootfile] [-o offset blocksize] [-n now] "
 			"[-p proto] [-s src] cdimage\n");
 	else
 		fprint(2, "usage: disk/dump9660 [-D:] [-9cjr] "
@@ -135,7 +135,7 @@
 	if(info.flags & CDpbs && !(info.flags & CDbootnoemu))
 		usage();
 
-	if(mk9660 && (fix || now || maxsize))
+	if(mk9660 && (fix || maxsize))
 		usage();
 
 	if(argc != 1)
--- /n/sources/plan9/sys/man/8/mk9660	Fri Jun 28 23:22:47 2013
+++ /sys/man/8/mk9660	Thu Mar 11 00:00:00 2021
@@ -33,6 +33,10 @@
 .B -v
 .I volume
 ]
+[
+.B -n
+.I now
+]
 .I image
 .PP
 .B disk/dump9660