[committed] __glibc_unsafe_len: Fix comment

[Siddhesh Poyarekar]

On 12/16/21 15:54, Adhemerval Zanella via Libc-alpha wrote:
> 
> 
> On 15/12/2021 22:52, Siddhesh Poyarekar via Libc-alpha wrote:
>> We know that the length is *unsafe*.
>>
>> Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
> 
> Seems obvious enough.
> 
> Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

Oh I already committed that one as obvious, could you please review this 
one:

https://patchwork.sourceware.org/project/glibc/patch/20211216014731.3939905-1-siddhesh@sourceware.org/

Thanks,
Siddhesh