message: Correct externally-visible logger levels
diff: @@ -138,13 +138,13 @@ VAI_API const char* vai_last_status_str();
  // Logger configuration.
  typedef enum {
  - VAI_LOG_SEVERITY_VERBOSE = 1,
  VAI_LOG_SEVERITY_TRACE = 2,
  - VAI_LOG_SEVERITY_DEBUG = 3,
  - VAI_LOG_SEVERITY_INFO = 4,
  - VAI_LOG_SEVERITY_WARNING = 5,
  - VAI_LOG_SEVERITY_ERROR = 6,
  - VAI_LOG_SEVERITY_FATAL = 7,
  + VAI_LOG_SEVERITY_DEBUG = 4,
  + VAI_LOG_SEVERITY_FATAL = 8,
  + VAI_LOG_SEVERITY_ERROR = 16,
  + VAI_LOG_SEVERITY_WARNING = 32,
  + VAI_LOG_SEVERITY_VERBOSE = 64,
  + VAI_LOG_SEVERITY_INFO = 128,
  } vai_log_severity;
  // Sets the process-global logging callback.
  