Fix indention error in SPI config

The unified logging system (aka OSLog) expects a OSLogMessage and does
not allow just passing in a string variable. Instead the variable has to
be interpolated into a string literal, which sets the default privacy
setting to 'private' and hence reducts the whole message.
This commit sets the privacy setting to 'public'.

.spi.yml

@@ -1,4 +1,4 @@
 version: 1
 builder:
   configs:
-	- documentation_targets: [LoggingOSLog]
+    - documentation_targets: [LoggingOSLog]

Sources/Logging OSLog/Docs.docc/index.md

@@ -78,6 +78,11 @@ library maps a reverse domain style label to the subsystem and category
 parameters of the unified logging system. See
 ``/LoggingOSLog/LoggingOSLog/init(label:)`` for more information.
 
+### What this library does not supply
+This library does not implement any of the interpolation privacy features of
+the unified logging system, i.e. there is no way to redact or align a meta
+information, like the `Logging` API would allow.
+
 [subsystem]: https://developer.apple.com/documentation/os/generating-log-messages-from-your-code#:~:text=The%20subsystem%20string,for%20each%20subsystem%20string.
 [category]: https://developer.apple.com/documentation/os/generating-log-messages-from-your-code#:~:text=The%20category%20string,for%20these%20strings.
 

Sources/Logging OSLog/Logging OSLog.swift

@@ -82,7 +82,7 @@ public struct LoggingOSLog: LogHandler {
 		let messageParts = [message.description, metadataCSV]
 
 		let message = messageParts.compactMap { $0 }.joined(separator: " -> ")
-		self.oslogger.log(level: OSLogType.from(loggerLevel: level), "\(message)")
+		self.oslogger.log(level: OSLogType.from(loggerLevel: level), "\(message, privacy: .public)")
 	}
 
 	/**