libcamera: log: Expand log level names

When the log severity names were added, there was only 4 characters
reserved for their printing. When the FATAL level was added, this
increased to 5, and thus both DBG and ERR can be expanded to their full
spelling. This also brings the levels in line with the representation
that can be used when calling logSetLevel().

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

src/libcamera/log.cpp

@@ -84,10 +84,10 @@ static int log_severity_to_syslog(LogSeverity severity)
 static const char *log_severity_name(LogSeverity severity)
 {
 	static const char *const names[] = {
-		"  DBG",
+		"DEBUG",
 		" INFO",
 		" WARN",
-		"  ERR",
+		"ERROR",
 		"FATAL",
 	};
 
@@ -198,7 +198,7 @@ void LogOutput::write(const LogMessage &msg)
 	case LoggingTargetStream:
 	case LoggingTargetFile:
 		str = "[" + utils::time_point_to_string(msg.timestamp()) + "] ["
-		    + std::to_string(Thread::currentId()) + "]"
+		    + std::to_string(Thread::currentId()) + "] "
 		    + log_severity_name(msg.severity()) + " "
 		    + msg.category().name() + " " + msg.fileInfo() + " "
 		    + msg.msg();