[lit] When setting SDKROOT on Darwin, use '--sdk macosx' to find the right SDK path.

This will make sure that we find an actual path in case you have Command Line Tools installed.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287403 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed