give exitcode a default value so that it can be serialised/deserialised properly when created without an exit code parameter
give exitcode a default value so that it can be serialised/deserialised properly when created without an exit code parameter

swift-lang/swift-e-lab,swift-lang/swift-e-lab,Parsl/parsl,Parsl/parsl,Parsl/parsl,Parsl/parsl