mail/postfix-current mail/postfix-current-sasl: Flavorize

[yasu]

Summary

• Add entry for slave port to MOVED
• Pet portlint and portclippy
• Reformat Makefile with portfmt

PR: 255647
Approved by: maintainer timeout (> 2 months), meta (mentor),

		ygy (mentor)

Test Plan

Build of all flavors succeeds with poudriere and 13.0-RELEASE jail.

[yasu]

Add 'Differential Revision:' to commit message.

[ygy]

Looks good to my eye, but would suggest peer review from @meta before pushing.

[yasu]

Chase update of ports tree.

[yasu]

Already committed as a5beb688f7ab