Update exit code name, set default exit code to -1 to make bugs obvious · game-ci/unity-builder@9413908

Changes were made to the following files and folders:

M test-project/ProjectSettings/ProjectSettings.asset D test-project/ProjectSettings/ProjectSettingsIl2cpp.asset

GfxDevice renderer is null. Unity cannot update the Ambient Probe and Reflection Probes that the SkyManager generates. Run the Editor without the -nographics argument or generate lighting for your scene.