Oniguruma https://github.com/kkos/oniguruma this change is merged from oniguruma develop branch. from commit 1db8a2726dfad0401f928cb8474bd770f07040a7. Cc: Liming Gao <liming.gao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Dongao Guo <dongao.guo@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>