db: Fix typo: reference
@@ -518,7 +518,7 @@ func (a *dbAppender) Add(lset labels.Labels, t int64, v float64) (uint64, error)
return 0, err
}
a.samples++
- // Store last byte of sequence number in 3rd byte of refernece.
+ // Store last byte of sequence number in 3rd byte of reference.
return ref | (uint64(h.meta.Sequence^0xff) << 40), nil
}
