[8] 2020-03-02, Bulk backports to sh/jdk8

[Roman Kennke]

>> +void ShenandoahHeuristics::adjust_penalty(intx step) {
>> +  assert(0 <= _gc_time_penalties && _gc_time_penalties <= 100,
>> +          err_msg("In range before adjustment: " INTX_FORMAT,
>> _gc_time_penalties));
>>
>>
>> There is one too many spaces before err_msg, I think. Happens in the
>> assert below too.
> It follows the indenting done in upstream:
>   https://hg.openjdk.java.net/jdk/jdk/rev/695c6b0986c3#l1.7

Ok. *sigh*

Go!

Roman