Add whitespace to make not_fn_impl more clear. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@283757 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2016-10-10 14:37:18 +00:00
parent 2b6c2499b1
commit c3f1198253