[PATCH] D13182: [compiler-rt] Fix Clang-tidy modernize-use-nullptr warnings in lib/sanitizer_common headers, unify closing inclusion guards

[Kostya Serebryany via llvm-commits]

kcc added a comment.

I'll commit this on Monday-ish unless someone beats me to it.


Repository:
  rL LLVM

http://reviews.llvm.org/D13182