Failure to load LANG env var

[Nokel81]

Description:
shell-env sometimes does not return all the environment variables that would be present after just starting a new terminal window.

System:

• OS: macos 10.15.3

Related Issues:
lensapp/lens#492 and lensapp/lens#351

This issue (and PR) are to fix LANG not being loaded properly.

Specifics:
It seems that macos (in particular) looks for the LANG env var to figure out how to send data to an application when pasting text. Namely, if one copies a unicode character from a web browser (firefox is what I tested) and paste it into a text region in an electron application, then the raw bytes that presented (to the JS using Uint8Array) change if LANG=en_us.UTF-8 is subsequently added to the processes env collection.

[sindresorhus]

There's unfortunately not much I can do based on this information, since I cannot reproduce. A reproducible test case would go a long way. If you can reliably reproduce this on your machine, I would recommend trying to debug it a little bit. For example, try confirming that it detect the correct shell, and that running the shell normally with these commands:

shell-env/index.js

Lines 6 to 9 in a95fd44

	const args = [
	'-ilc',
	'echo -n "_SHELL_ENV_DELIMITER_"; env; echo -n "_SHELL_ENV_DELIMITER_"; exit'
	];

outputs the expected result.