getNewMemBuffer memsets the buffer to zeros,
the caller don't have to initialize it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214994 91177308-0d34-0410-b5e6-96231b3b80d8
fix typo


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214995 91177308-0d34-0410-b5e6-96231b3b80d8