tree 651801b728d76af643f976c76b710de864abc944
parent afa037bc26c8a5b3bf12ce19b540d9fee0ebb28e
author Brad Fitzpatrick <bradfitz@golang.org> 1540491533 +0000
committer Brad Fitzpatrick <bradfitz@golang.org> 1540508362 +0000

cmd/buildlet: set up & clean TMPDIR and GOCACHE for child processes

Also, remove use of envutil to de-dup environment variables. Go has
done that automatically since Go 1.9.

Fixes golang/go#27182
Fixes golang/go#28041

Change-Id: I8e81e7996b5cee305465814aeb1b14df80b799dd
Reviewed-on: https://go-review.googlesource.com/c/144637
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>