[ASan] Fix compilation of asan_str_test.cc on non-Darwin.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@191083 91177308-0d34-0410-b5e6-96231b3b80d8
[libsanitizer] Pass an explicit template to mktemp. Running mktemp without a template doesn't work on Darwin.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@191084 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Remove a complex multiline comment that baffles lint.
That comment is repeated in another function below.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@191085 91177308-0d34-0410-b5e6-96231b3b80d8