Don't clang-format cling test script.
Don't clang-format cling test script.

Since the test script is not a fully compliant C++ file, clang-format can not
(be expected to) follow its unusual conventions/requirements.

root-mirror/cling,root-mirror/cling,karies/cling,root-mirror/cling,karies/cling,root-mirror/cling,root-mirror/cling,karies/cling,karies/cling,root-mirror/cling,karies/cling,karies/cling