[PATCH] A patch for sanitizers' syscalls on FreeBSD

[Viktor Kutuzov]

  > I think SANITIZER_USES_CANONICAL_LINUX_SYSCALLS isn't a good name at all as we're going to define it on BSD as well.

  Looks OK to me as soon as ##SANITIZER_USES_CANONICAL_LINUX_SYSCALLS## expands to 0.

http://llvm-reviews.chandlerc.com/D2900