[LTP] [PATCH 2/2] tst_test.sh: Add public tst_test_root command

[Joerg Vehlow]

>>> Can we keep the name to be tst_require_root() please?
>>>
>>> Historically this function has been always named like this in LTP.
>>>
>> Not a very good argument for two reasons:
>> 1. The function was internal to the library, so no one (except for
>> library developers)
> It has been in a public API for the old library for more than ten years
> before the new library was written.
Has been, but is not anymore. But I accept it as an argument.
>
>> 2. I wanted to make it consistent with other functions, that do similar
>> stuff like
>>   ???? tst_test_drivers and tst_test_cmds. Both also call tst_brk in case
>> of unsuccessful tests.
> Well I do not like these names either, it's less descriptive that it
> would have been with tst_require_cmds and tst_require_drivers, so if
> anything I would be for renaming the tst_test_* ones.
Fair enough, that makes sense. But then we require a change to 
tst_test_* first,
otherwise the api names are inconsistent. And I'm not sure if changing the
other functions is really worth it.