create a new man page for B(1) and E(1), and remove old documentation that was
a part of sam(1).  the original sam-based B functionality is long subsumbed by the
plumber.  the -nnn option to B was removed, as it is replaced by addresses

Reference: /n/atom/patch/applied/boutsidesam
Date: Sun Oct 18 23:39:05 CES 2015
Signed-off-by: quanstro@quanstro.net

--- /sys/man/1/b	Thu Jan  1 00:00:00 1970
+++ /sys/man/1/b	Sun Oct 18 23:38:36 2015
@@ -0,0 +1,43 @@
+.TH B 1
+.SH NAME
+B, E \- plumb to editor
+.SH SYNOPSIS
+.PP
+.B B
+.I file ...
+.PP
+.B E
+.I file
+.PP
+.SH DESCRIPTION
+.I B
+opens the named
+.I files
+in an editor.
+If available,
+.I B
+uses plumbing
+(see
+.IR plumber (4))
+to send a message to all listening editors.
+The
+.I file
+may be decorated with a
+.L :
+followed by a legal address, such as a line number.
+The dot in this file will be set to this address.
+Plumbing may decide to open a new editor.
+Otherwise, if
+.IR sam(1)'s
+named pipe is available, it will be used.
+.PP
+.B E
+opens a file with
+.BR B ,
+and exits when it has changed.
+.SH SOURCE
+.TF /rc/bin/B
+.TP
+.B /rc/bin/B
+.TP
+.B /rc/bin/E
--- /sys/man/1/sam	Sun Oct 18 23:38:39 2015
+++ /sys/man/1/sam	Sun Oct 18 23:38:40 2015
@@ -15,12 +15,6 @@
 .I machine
 .PP
 .B sam.save
-.PP
-.B B
-[
-.BI -nnnn
-]
-.I file ...
 .SH DESCRIPTION
 .I Sam
 is a multi-file editor.
@@ -832,18 +826,6 @@
 .BI /srv/sam. user
 which acts as an additional source of commands.  Characters written to
 the named pipe are treated as if they had been typed in the command window.
-.PP
-.I B
-is a shell-level command that causes an instance of
-.I sam
-running on the same terminal to load the named
-.IR files .
-.I B
-uses either plumbing or the named pipe, whichever service is available.
-If plumbing is not enabled,
-the option allows a line number to be specified for
-the initial position to display in the last named file
-(plumbing provides a more general mechanism for this ability).
 .SS Abnormal termination
 If
 .I sam