Index: misc/brltty/Makefile
===================================================================
RCS file: /cvs/ports/misc/brltty/Makefile,v
retrieving revision 1.20
diff -u -p -u -p -r1.20 Makefile
--- misc/brltty/Makefile	11 Feb 2021 12:51:03 -0000	1.20
+++ misc/brltty/Makefile	11 Sep 2021 06:42:51 -0000
@@ -3,7 +3,7 @@
 COMMENT=	access software for a blind person using a braille terminal
 
 DISTNAME=	brltty-3.6
-REVISION=	5
+REVISION=	6
 CATEGORIES=	misc
 HOMEPAGE=	http://mielke.cc/brltty
 MASTER_SITES=	${HOMEPAGE}/releases/
Index: misc/brltty/patches/patch-Programs_cmd_c
===================================================================
RCS file: misc/brltty/patches/patch-Programs_cmd_c
diff -N misc/brltty/patches/patch-Programs_cmd_c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ misc/brltty/patches/patch-Programs_cmd_c	11 Sep 2021 06:42:51 -0000
@@ -0,0 +1,20 @@
+$OpenBSD$
+
+Remove %n format-specifier from snprintf
+
+Index: Programs/cmd.c
+--- Programs/cmd.c.orig
++++ Programs/cmd.c
+@@ -87,9 +87,9 @@ describeCommand (int command, char *buffer, int size) 
+              candidate->name, number, candidate->description);
+   } else {
+     int offset;
+-    snprintf(buffer, size, "%s: %n%s",
+-             candidate->name, &offset, candidate->description);
+-
++    offset = snprintf(buffer, size, "%s: ", candidate->name);
++    if(offset>0)
++        snprintf(buffer + offset, size - offset, "%s", candidate->description);
+     if ((blk == 0) && (command & BRL_FLG_TOGGLE_MASK)) {
+       char *description = buffer + offset;
+       const char *oldVerb = "toggle";