Fixes a security issue with -pristine and an empty prefix.
Fixes a security issue with -pristine and an empty prefix.

For the case of an empty prefix, the parent process' environment would
get dumped into the child process' environment, even when -pristine was
specified. This initializes the environment to an empty slice instead of
a nil one to prevent this.

hashicorp/envconsul,hashicorp/envconsul