[ASan] Use replace_str=0 and replace_intrin=0 in printf-{2,4}.c to avoid triggering a buffer overflow in strlen and memcpy.
This change fixes printf-2.c and printf-4.c under OSX.



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@200756 91177308-0d34-0410-b5e6-96231b3b80d8