Importing usr.bin/hexdump

Replaces commands/hexdump as well as commands/od.
No Minix-specific changes were needed.

test/testsh2.sh was modified to match the spacing
used in the output of the NetBSD od command.

Change-Id: I65ee1d30e8cdd546097462df7c38c2d38f3e891d

man/man1/Makefile

@@ -11,7 +11,7 @@ MAN=	ash.1 at.1 \
 	last.1 loadfont.1 loadkeys.1 logger.1 \
 	look.1 lp.1 lspci.1 mail.1  \
 	mixer.1 \
-	mkproto.1 mount.1 mt.1 od.1 \
+	mkproto.1 mount.1 mt.1 \
 	ping.1 playwave.1 prep.1 \
 	profile.1 ps.1 rcp.1 recwave.1 \
 	remsync.1 rget.1 rlogin.1 rsh.1 rz.1 \

man/man1/od.1

@@ -1,58 +0,0 @@
-.TH OD 1
-.SH NAME
-od \- octal dump
-.SH SYNOPSIS
-\fBod\fR [\fB\-bcdhox\fR]\fR [\fIfile\fR] [ [\fB+\fR] \fIoffset\fR [\fB.\fR][\fBb\fR]\fR ]\fR
-.br
-.de FL
-.TP
-\\fB\\$1\\fR
-\\$2
-..
-.de EX
-.TP 20
-\\fB\\$1\\fR
-# \\$2
-..
-.SH OPTIONS
-.TP 5
-.B \-b
-# Dump bytes in octal
-.TP 5
-.B \-c
-# Dump bytes as ASCII characters
-.TP 5
-.B \-d
-# Dump words in decimal
-.TP 5
-.B \-h
-# Print addresses in hex (default is octal)
-.TP 5
-.B \-o
-# Dump words in octal (default)
-.TP 5
-.B \-v
-# Verbose (list duplicate lines)
-.TP 5
-.B \-x
-# Dump words in hex
-.SH EXAMPLES
-.TP 20
-.B od \-ox file
-# Dump \fIfile\fP in octal and hex
-.TP 20
-.B od \-d file +1000
-# Dump \fIfile\fP starting at byte 01000
-.TP 20
-.B od \-c file +10.b
-# Dump \fIfile\fP starting at block 10
-.SH DESCRIPTION
-.PP
-.I Od
-dumps a file in one or more formats.
-If \fIfile\fP is missing, \fIstdin\fR is dumped.
-The \fIoffset\fP argument tells
-.I od
-to skip a certain number of bytes or blocks before starting.
-The offset is in octal bytes, unless it is followed by a 
-\&'.\&' for decimal or \fBb\fP for blocks or both.