This is probably a minor point because it wouldn't affect distributed binaries, but I thought I'd mention it in case the behavior is unexpected.
After watching WWDC 20202 Explore logging in Swift, I tried some simple examples in a Mac command-line app. I was surprised to see the strings were all printed just fine. There was no redaction. At least when running the program from Xcode.
(Even using the old os_log() approach showed the strings without needing to add %{public}@.)
However, if I run the program from a Terminal shell, the string arguments are properly redacted.
I actually like this behavior (showing more while running in Xcode), but I thought I'd just raise the issue. Sample code and screenshot from Console are shown below.
import Foundation
import os
let logger = Logger(subsystem: "com.example.logging_test", category: "hello")
let greeting = "Hello"
let personName = "World"
logger.log("\(greeting), \(personName)")
logger.log("\(greeting, privacy: .private), \(personName)")
logger.log("\(greeting, privacy: .public), \(personName)")
os_log("%@, %@", greeting, personName)
