Replication: Different naming policy

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/12/sql-createsubscription.html
Description:

[update to my last message]

Hi, i'm using v10. Naming is deferent between publication and
subscription.

Create publication "PubAll Master(192.168.1.180) Slave(192.168.1.185)"
....
Works fine, but
Create subscription "suball master(192.168.1.180) slave(192.168.1.185)"
....

I get the naming error (Replication slot names may only contain lower case
letters, numbers, and underscore character.

Don't know about other versions but
Thought to imply to this matter, thanks.