Add a new modifier /c to "disassemble" command to make it output binary code

[Eli Zaretskii]

> Date: Thu, 9 Jul 2009 15:00:32 -0700
> From: Doug Evans <dje@google.com>
> Cc: gdb-patches ml <gdb-patches@sourceware.org>
> 
> The option to objdump is --[no-]show-raw-insn.
> The word "raw" is the mnemonic I use to remember the option name.
> Hence I wonder if it would be easier for users to remember
> "disassemble /r" than "disassemble /c".

Yes, and perhaps have "show raw instructions" somewhere in the text of
the manual that describes this.