In #188049 the alignment of register names for the raw value part "pc =
0x..." changed.
This resulted in many register fields being 2 spaces off where they
should be, because the stream we were printing to had a 2 space indent
set where it had none before.
This is actually a bug in the original field formatting code. It assumed
the stream had no indent level of its own. So the fix is to indent using
the stream (the 2 spaces), then indent to where the register name ends.
David Spickett
3966381ccb