[libunwind] r296358 - Add libcxxabi's LICENSE.TXT to libunwind.

[Hans Wennborg via cfe-commits]

Merged together with r296359 to 4.0 in r296364.

On Mon, Feb 27, 2017 at 9:33 AM, Arnaud A. de Grandmaison via
cfe-commits <cfe-commits at lists.llvm.org> wrote:
> Author: aadg
> Date: Mon Feb 27 11:33:20 2017
> New Revision: 296358
>
> URL: http://llvm.org/viewvc/llvm-project?rev=296358&view=rev
> Log:
> Add libcxxabi's LICENSE.TXT to libunwind.
>
> When libunwind was spinned off libcxxabi, most file were copied from
> libcxxabi to libunwind.  However, libc++abi's toplevel LICENSE.TXT was
> forgotten in the copying. It's considered a good practice to have the
> license file at the root of the project, and making linunwind a separate
> project was not supposed to change its licensing. Besides, several
> header files refer to the LICENSE.TXT, so copy the one from libc++abi.
>
> Added:
>     libunwind/trunk/LICENSE.TXT