[RFA/doc] Cleanup -break-insert documentation

[Eli Zaretskii]

> Date: Wed, 20 Jun 2012 12:27:36 -0700
> From: Keith Seitz <keiths@redhat.com>
> 
> This patch does several minor things:
> 
> - it re-orders the list of options to for -break-insert to match the 
> order given in synopsis
> - it uses "thread-id" instead of "thread" in the synopsis (to make it 
> more consistent with other documentation)
> - it adds/documents "-p" in the list of options
> 
> Keith
> 
> doc/ChangeLog
> 2012-06-20  Keith Seitz  <keiths@redhat.com>
> 
> 	* gdb.texinfo (GDB/MI Breakpoint Commands): Re-order options
> 	for -break-insert and document -p.

This is OK, thanks.