Fix bold text style spilling after help info on Mac terminal

[JotaRandom]

Fixes #241

Signed-off-by: Pablo Lezaeta Reyes [email protected]
Signed-off-by: Ng Yik Phang

[JotaRandom]

I you still want add a comment to the lines or fix CONTRIBUTORS your name or update the CHANGELOG or something, fell free to do it.

If nothing is done in like a few days I will merge it anyway.

[maandree]

Changing [21m to [22m is not a good solution, change it to [0m or [m instead.

[JotaRandom]

Was mentioned in #241 that even node.js use 21, so is there any reason to preffer [0m or [m instead of [22m ?

alsp I will pag @ngyikp to comment on the issue and @erkin since he still the owner of the repo and maybe have even a 3th idea.

[maandree]

22m should work. but the probability is less than for 0m.

[JotaRandom]

What is left to test is term.app (macOS) and I dont have a Mac to test so I will wait (anyways) for @ngyikp or another macOS user for they opinion on that alternative to use 0m.

[JotaRandom]

optionally we can just use one followed by the other.

also aparently some change now make the underscore be persistant on help so a clearing at the end of every --help invocation is needed