By default, exec uses the environment of the current process, however,
if `exec.Env` is not `nil`, the environment is discarded:
e73f489494/src/os/exec/exec.go (L57-L60)
> If Env is nil, the new process uses the current process's environment.
When adding a new environment variable, prepend the current environment,
to make sure it is not discarded.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit b84bff7f8ad1562a7d05f21bd84179d3306f2b4b)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: 19e733f89f7652f58b567b5178bacc10ef2940b5
Component: engine
125d84fbcf