* Actually locate the clang executable, and allow user overrides * Properly preserve arguments in get_build_tool_path * Fix get_build_tool_path for commands with dashes (e.g. "clang-5.0")
* Actually locate the clang executable, and allow user overrides * Properly preserve arguments in get_build_tool_path * Fix get_build_tool_path for commands with dashes (e.g. "clang-5.0")