message: fix: correct SentryStreamHandler to log Error and Crit
  The constants are actually defined in the reverse order of their
  severity. The prior behavior would log everything _but_ log.LvlCrit.
diff: @@ -11,18 +11,22 @@ import (
  var jsonFmt = log.JSONFormat()
  // SentryStreamHandler creates a log.Handler that behaves similarly to
  -// log.StreamHandler, however it writes any log levels greater than or equal to
  -// LvlError to Sentry. In that case, the passed log.Record is encoded using JSON
  -// rather than the default terminal output, so that it can be captured for
  -// debugging in the Sentry dashboard.
  +// log.StreamHandler, however it writes any log with severity greater than or
  +// equal to log.LvlError to Sentry. In that case, the passed log.Record is
  +// encoded using JSON rather than the default terminal output, so that it can be
  +// captured for debugging in the Sentry dashboard.
  func SentryStreamHandler(wr io.Writer, fmtr log.Format) log.Handler {
  h := log.FuncHandler(func(r *log.Record) error {
  _, err := wr.Write(fmtr.Format(r))
  - // If this record is LvlError or higher, serialize the record
  - // using JSON and write it to Sentry. We also capture the error
  - // message separately so that it's easy to parse what the error
  - // is in the dashboard.
  - if r.Lvl >= log.LvlError {
  + // If this record's severity is log.LvlError or higher,
  + // serialize the record using JSON and write it to Sentry. We
  + // also capture the error message separately so that it's easy
  + // to parse what the error is in the dashboard.
  + //
  + // NOTE: The log.Lvl* constants are defined in reverse order of
  + // their severity, i.e. zero (log.LvlCrit) is the highest
  + // severity.
  + if r.Lvl <= log.LvlError {
  sentry.WithScope(func(scope *sentry.Scope) {
  scope.SetExtra("context", jsonFmt.Format(r))
  sentry.CaptureException(errors.New(r.Msg))
  