Fix typo.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181759 91177308-0d34-0410-b5e6-96231b3b80d8
Removed trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181760 91177308-0d34-0410-b5e6-96231b3b80d8