[PATCH 3 of 3] print help for undocumented options

[Joseph Myers]

On Thu, 22 Oct 2015, Martin Sebor wrote:

> Good point. It didn't occur to me that the "leaf" .exp files are all
> part of the same process.
> 
> While testing it, I noticed that a COLUMNS setting in the environment
> can cause some other tests in the help.exp file to fail. Setting the
> variable early on fixes that. (It seems the environment should be
> sanitized lower down in the test driver, and for all tests. But I'm
> not planning to tackle that.)
> 
> Attached is the updated patch.

This patch is OK.

-- 
Joseph S. Myers
joseph@codesourcery.com