typos correct

Signed-off-by: kjinan <2008kongxiangsheng@163.com>

tsdb/exemplar_test.go

@@ -26,7 +26,7 @@ import (
 	"github.com/prometheus/prometheus/storage"
 )
 
-// Tests the same exemplar cases as AddExemplar, but specfically the ValidateExemplar function so it can be relied on externally.
+// Tests the same exemplar cases as AddExemplar, but specifically the ValidateExemplar function so it can be relied on externally.
 func TestValidateExemplar(t *testing.T) {
 	exs, err := NewCircularExemplarStorage(2, nil)
 	require.NoError(t, err)

tsdb/index/index_test.go

@@ -217,7 +217,7 @@ func TestIndexRW_Postings(t *testing.T) {
 	}
 	require.NoError(t, p.Err())
 
-	// The label incides are no longer used, so test them by hand here.
+	// The label indices are no longer used, so test them by hand here.
 	labelIndices := map[string][]string{}
 	require.NoError(t, ReadOffsetTable(ir.b, ir.toc.LabelIndicesTable, func(key []string, off uint64, _ int) error {
 		if len(key) != 1 {