1. '\r' char will not return in buffer so buffer size should exclude the number of '\r' char.
2. When 'Truncate' is TRUE return the truncated string with 'EFI_SUCCESS' status.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Qiu Shumin <shumin.qiu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18276 6f19259b-4bc3-4df7-8a09-765794883524
ba1806251f