Acme (Let's Encrypt) Suggestion: nicer name for the CA Cert entry

[eduardr]

Currently the acme package adds a CA Cert entry in
System -> Certificate Manager -> CAs with the name:

Acmecert: O=Let's Encrypt, CN=Let's Encrypt Authority X3, C=US

This is a long and ugly name imho, and would suggest a short name such
as "Let's Encrypt CA" or "Let's Encrypt X3 CA".

I know that I can manually modify the name, but don't know whether
this will confuse the acme package or cause it to recreate the CA when
the cert is later renewed.

This name also shows up under the Certificates -> Issuer field, and
having a nicer CA name would prevent ugliness there as well.

Thanks!