[main] Source code updates from dotnet/dotnet#2717

ViktorHofer merged 2 commits intomaindotnet/command-line-api:mainfrom

darc-main-da7b0030-5605-4faf-80ae-5767f6a0a791dotnet/command-line-api:darc-main-da7b0030-5605-4faf-80ae-5767f6a0a791Copy head branch name to clipboard