[COMMITTERS] pgsql: Tweak some SCRAM error messages and code comments

Tweak some SCRAM error messages and code comments Clarify/correct some error messages, fix up some code comments that confused SASL and SCRAM, and other minor fixes. No changes in functionality. Branch -- master Details --- https://git.postgresql.org/pg/commitdiff/85f4d6393da2ed2ad3ec49

[COMMITTERS] pgsql: Tweak some SCRAM error messages and code comments

Tweak some SCRAM error messages and code comments Clarify/correct some error messages, fix up some code comments that confused SASL and SCRAM, and other minor fixes. No changes in functionality. Branch -- REL_10_STABLE Details --- https://git.postgresql.org/pg/commitdiff/8bf94694691d118