fix: disregard whitespace in cli help text test

[aral]

Fixes #129

[lukeed]

Hi, sorry, but can you please check the new commit on your windows machine? I was trying to set up this repo's CI to include windows but it's not worth the time/effort – I'll revisit later.

Changes are because whitespace is important & your original PR just removed everything. If this doesn't work then it should be .replace(/\r?\n/g, '\n') for both strings, since it's Windows' carriage return that's the problem.

[aral]

Hi, sorry, but can you please check the new commit on your windows machine? I was trying to set up this repo's CI to include windows but it's not worth the time/effort – I'll revisit later.

Hey Luke, that works for me (on my Linux machine, by the way) ;)

Also, under Node 16.x, at least, I’m getting a deprecation warning for trimRight(). It also works for me using the recommended replacement, trimEnd() which looks like it was in Node since 10.x. Might be worth using that instead.