Use mkstemp_format in VG_(mkstemp). That way nothing breaks should
the format change.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14252 a5019735-40e9-0310-863c-91ae7b9d1cf9
arm64 does not implement fork syscall. Use clone instead


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14253 a5019735-40e9-0310-863c-91ae7b9d1cf9