[tests] Use multiple statements instead of 'echo -e', which is not part of BSD echo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189560 91177308-0d34-0410-b5e6-96231b3b80d8
[lit] [tests] Add missing test input file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189561 91177308-0d34-0410-b5e6-96231b3b80d8