Make configure tests more verbose in Jenkins

git-svn-id: https://llvm.org/svn/llvm-project/zorg/trunk@223545 91177308-0d34-0410-b5e6-96231b3b80d8
Make printed commands safe for copy and paste in Jenkins build console

git-svn-id: https://llvm.org/svn/llvm-project/zorg/trunk@223552 91177308-0d34-0410-b5e6-96231b3b80d8