[PATCH 1/2] Fix issues with gdb-memory-map.dtd

[Eli Zaretskii]

> From: Simon Marchi <simon.marchi@ericsson.com>
> CC: Simon Marchi <simon.marchi@ericsson.com>
> Date: Thu, 9 Nov 2017 18:18:22 -0500
> 
> gdb/doc/ChangeLog:
> 
> 	* gdb.texinfo (Memory Map Format): Update gdb-memory-map.dtd.

It's technically a documentation patch, but I don't think I have
anything intelligent to say about it.  Would someone else please
review this in my stead?

Texinfo-wise, there are no problems in the patch.