2f02daaa46
This internally exported function allowed merging environment variable lists, and was mostly a convenience for the rest of cmd/go/internal. It seems to date all the way back to 2013. However, since CL 37586 in early 2017, os/exec has already taken care of deduplicating environment variable lists. Thus, it's unnecessary for cmd/go to take care of that before calling exec.Cmd.Start. Moreover, because os/exec will deduplicate the list in any case, we're adding extra work in all these scenarios. Finally, remove an unnecessary addition of GOROOT= in internal/tool. cfg.OrigEnv may not have the correct GOROOT set up, but os.Environ does; cmd/go's main function makes sure of that. Change-Id: I1f92f65fb927dc15bc7b0397cfd1a572b6337bb3 Reviewed-on: https://go-review.googlesource.com/c/go/+/164703 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> |
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