[PATCH] selftests/powerpc: Fix compiling error on tlbie_test due to newer gcc

[Michael Ellerman]

On Thu, 2019-10-03 at 21:10:10 UTC, "Desnes A. Nunes do Rosario" wrote:
> Newer versions of GCC demand that the size of the string to be copied must
> be explicitly smaller than the size of the destination. Thus, the NULL
> char has to be taken into account on strncpy.
> 
> This will avoid the following compiling error:
> 
>   tlbie_test.c: In function 'main':
>   tlbie_test.c:639:4: error: 'strncpy' specified bound 100 equals destination size [-Werror=stringop-truncation]
>       strncpy(logdir, optarg, LOGDIR_NAME_SIZE);
>       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   cc1: all warnings being treated as errors
> 
> Signed-off-by: Desnes A. Nunes do Rosario <desnesn at linux.ibm.com>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/3439595d5b85f0af565f5a58e495d885537fb227

cheers