Issue with injected environment variables and subshell commands

[naddinadja]

When you inject environment variables, either with the config key cijoe.run.env, or via cijoe.run(cmd, env={...}), environment variables are prepended to the command. If the given cmd is a subshell command (e.g. cijoe.run("(cd dir; make)")), prepending the injected environment variables will render the final command invalid.

This could potentially be fixed by changing the way environment variables are injected:

# from
ENV=var <cmd>
# to 
export ENV=var; <cmd>