mvcc: clean-up godoc in key_index.go
Minor clean-up.
@@ -46,7 +46,7 @@ var (
// rev except the largest one. If the generation becomes empty
// during compaction, it will be removed. if all the generations get
// removed, the keyIndex should be removed.
-
+//
// For example:
// compact(2) on the previous example
// generations:
@@ -223,9 +223,8 @@ func (ki *keyIndex) keep(atRev int64, available map[revision]struct{}) {
}
func (ki *keyIndex) doCompact(atRev int64, available map[revision]struct{}) (genIdx int, revIndex int) {
- // walk until reaching the first revision that has an revision smaller or equal to
- // the atRev.
- // add it to the available map
+ // walk until reaching the first revision smaller or equal to "atRev",
+ // and add the revision to the available map
f := func(rev revision) bool {
if rev.main <= atRev {
available[rev] = struct{}{}
