- Required unicode control chars -> Null character - Remove CHAR_NULL definition in SimpleTextIn.h - https://bugzilla.tianocore.org/show_bug.cgi?id=172 Cc: Liming Gao <liming.gao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Bell Song <binx.song@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>