add ~b documentation

SCCS-vsn: usr.bin/mail/mail.1 6.4

diff --git a/usr/src/usr.bin/mail/mail.1 b/usr/src/usr.bin/mail/mail.1
index efe1791..5db158d 100644 (file)
--- a/usr/src/usr.bin/mail/mail.1
+++ b/usr/src/usr.bin/mail/mail.1
@@ -2,7 +2,7 @@
 .\" All rights reserved.  The Berkeley software License Agreement
 .\" specifies the terms and conditions for redistribution.
 .\"
-.\"    @(#)mail.1      6.3 (Berkeley) %G%
+.\"    @(#)mail.1      6.4 (Berkeley) %G%
 .\"
 .TH MAIL 1 ""
 .UC 4
@@ -573,6 +573,10 @@ by the option
 .BR ~! command
 Execute the indicated shell command, then return to the message.
 .TP
+\fB~b\fR name ...
+Add the given names to the list of carbon copy recipients but do not make
+the names visible in the Cc: line ("blind" carbon copy).
+.TP
 \fB~c\fR name ...
 Add the given names to the list of carbon copy recipients.
 .TP