Method showHelp

tests/catch.h:6302–6307

        }

        void showHelp( std::string const& processName ) {
            Catch::cout() << "\nCatch v" << libraryVersion << "\n";

            m_cli.usage( Catch::cout(), processName );
            Catch::cout() << "For more detail usage please see the project docs\n" << std::endl;
        }

        int applyCommandLine( int argc, char const* argv[], OnUnusedOptions::DoWhat unusedOptionBehaviour = OnUnusedOptions::Fail ) {
            try {