Update storage/memoized_iterator.go
@@ -19,7 +19,7 @@ import (
"github.com/prometheus/prometheus/tsdb/chunkenc"
)
-// MemoizedSeriesIterator wraps an iterator with a buffer to look-back the previous element.
+// MemoizedSeriesIterator wraps an iterator with a buffer to look back the previous element.
type MemoizedSeriesIterator struct {
it chunkenc.Iterator
delta int64
