added test code for test_parse_multiple_start_lines_without_end_lines()
added test code for test_parse_multiple_start_lines_without_end_lines()

SalesforceFoundation/CumulusCI,cdcarter/CumulusCI,Joble/CumulusCI,e02d96ec16/CumulusCI,SalesforceFoundation/CumulusCI,e02d96ec16/CumulusCI