RDN string spacing

[brussee]

Is it correct to add extra whitespace here around the equals sign? (Probably, but...)
https://github.com/nonebot/nonecorn/blob/nonecorn_dev/src/hypercorn/utils.py#L277

Inserting whitespace is not advised because it may not be obvious to the user which whitespace is part of the DN string and which whitespace was added for readability.

From: https://www.rfc-editor.org/rfc/rfc4514

At least for consistency I'd argue to have a similar representation as the PEM format produced by OpenSSL, which does not have (extra) spaces around equals sign (checked on v1.1.1n).

[synodriver]

Well, maybe we can add a config for that?