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Bryan C. Mills bfb1342a40 cmd/go: do not append to the global cfg.OrigEnv slice
Appending to a global slice is only safe if its length is already
equal to its capacity. That property is not guaranteed for slices in
general, and empirically does not hold for this one.

This is a minimal fix to make it easier to backport.
A more robust cleanup of the base.EnvForDir function will be sent in a
subsequent CL.

Fixes #38077
Updates #37940

Change-Id: I731d5bbd0e516642c2cf43e713eeea15402604e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/225577
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2020-03-26 19:02:17 +00:00
.github .github: add link to questions in ISSUE_TEMPLATE 2020-01-06 17:05:31 +00:00
api sync: add new Map method LoadAndDelete 2020-02-25 14:31:55 +00:00
doc doc/articles/wiki: use correct variable name in closures guide 2020-03-20 08:42:30 +00:00
lib/time
misc syscall/js: make wasm_exec.js compatible with Webpack 2020-03-24 10:33:13 +00:00
src cmd/go: do not append to the global cfg.OrigEnv slice 2020-03-26 19:02:17 +00:00
test test/chan: fix trivial typos 2020-03-25 22:22:20 +00:00
.gitattributes build: force all Windows batch files to CRLF 2020-03-22 08:42:38 +00:00
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