From: Kees Cook <kees@debian.org>
Date: Wed, 20 Nov 2019 13:08:40 -0500
Subject: Identify how to perform "fast erase" operations on devices that

Bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=770198

support it.
---
 doc/mt.1 | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/doc/mt.1 b/doc/mt.1
index 55516a8..383d688 100644
--- a/doc/mt.1
+++ b/doc/mt.1
@@ -122,7 +122,9 @@ Rewind the tape, then wind it to the end of the reel,
 then rewind it again.
 .TP 
 .B erase
-Erase the tape.
+Perform long erase of tape. If
+.I count
+is 0, perform short erase of tape (some devices do not support this).
 .PP
 .B mt
 exits with a status of 0 if the operation succeeded, 1 if the