go1.17beta1 doesn't have to + after devel
go1.17beta1 doesn't have to + after devel

It looks like:
  go version devel go1.17-dc00dc6c6b Thu Jun 10 12:41:37 2021 +0000 linux/amd64

where go1.16beta1 looked like:
  go version devel +2ff33f5e44 Thu Dec 17 16:03:19 2020 +0000 linux/amd64

maruel/panicparse,maruel/panicparse