There are a few leftover changes:

1. make/autoconf/libraries.m4 is no longer modified due to 8316645, but still has the copyright date change.
2. spurious space change in src/hotspot/cpu/ppc/c1_LIRAssembler_ppc.cpp
3. another copyright date change in unmodified src/hotspot/share/opto/regmask.hpp

here are some related discussions: https://github.com/openjdk/riscv-port-jdk11u/pull/11#issuecomment-2008910914