[fix] shared.WaitGroup.WaitFor with duration 0 now falls back to Wait
[fix] shared.WaitGroup.WaitFor with duration 0 now falls back to Wait

mre/gollum,trivago/gollum,trivago/gollum,luqasz/gollum,luqasz/gollum,mre/gollum,relud/gollum,relud/gollum