RFR: 8255067: Restore Copyright line in file modified by 8253191

[Vladimir Ivanov]

Thanks for the reviews, Vladimir and Aleksey.

>> Make it crystal clear that  8253191 test case doesn't have anything in common with the original version of the test
>> case for 8204479:
>>    * restore original test case
>>    * add 8253191 test case as a separate file
> 
> Looks good, but maybe call the new test `TestUnsignedByteCompare2`? The other test is kinda "first".

It depends on how you number things: sometimes "first" is referred to as 
0th ;-)

Best regards,
Vladimir Ivanov