[Msan] Fix uname() interception on FreeBSD
Differential Revision: http://reviews.llvm.org/D6738


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@224708 91177308-0d34-0410-b5e6-96231b3b80d8
[Sanitizers] Intercept wcsnrtombs() on FreeBSD
Differential Revision: http://reviews.llvm.org/D6755


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@224709 91177308-0d34-0410-b5e6-96231b3b80d8