modified wf/echo.cwl, removing newline character which has differnt encoding on windows
modified wf/echo.cwl, removing newline character which has differnt encoding on windows

dleehr/cwltool,dleehr/cwltool,dleehr/cwltool,common-workflow-language/cwltool,dleehr/cwltool,common-workflow-language/cwltool,common-workflow-language/cwltool