etcd: fix typos

kvdb/etcd/readwrite_bucket.go

@@ -318,7 +318,7 @@ func (b *readWriteBucket) DeleteNestedBucket(key []byte) error {
 }
 
 // Put updates the value for the passed key.
-// Returns ErrKeyRequred if te passed key is empty.
+// Returns ErrKeyRequired if the passed key is empty.
 func (b *readWriteBucket) Put(key, value []byte) error {
 	if len(key) == 0 {
 		return walletdb.ErrKeyRequired
@@ -335,7 +335,7 @@ func (b *readWriteBucket) Put(key, value []byte) error {
 }
 
 // Delete deletes the key/value pointed to by the passed key.
-// Returns ErrKeyRequred if the passed key is empty.
+// Returns ErrKeyRequired if the passed key is empty.
 func (b *readWriteBucket) Delete(key []byte) error {
 	if key == nil {
 		return nil
@@ -360,7 +360,7 @@ func (b *readWriteBucket) Tx() walletdb.ReadWriteTx {
 	return b.tx
 }
 
-// NextSequence returns an autoincrementing sequence number for this bucket.
+// NextSequence returns an auto-incrementing sequence number for this bucket.
 // Note that this is not a thread safe function and as such it must not be used
 // for synchronization.
 func (b *readWriteBucket) NextSequence() (uint64, error) {
@@ -396,7 +396,7 @@ func (b *readWriteBucket) Sequence() uint64 {
 		return 0
 	}
 
-	// Otherwise try to parse a 64 bit unsigned integer from the value.
+	// Otherwise try to parse a 64-bit unsigned integer from the value.
 	num, _ := strconv.ParseUint(string(val), 10, 64)
 
 	return num
@@ -414,7 +414,7 @@ func flattenMap(m map[string]struct{}) []string {
 	return result
 }
 
-// Prefetch will prefetch all keys in the passed paths as well as all bucket
+// Prefetch will prefetch all keys in the passed-in paths as well as all bucket
 // keys along the paths.
 func (b *readWriteBucket) Prefetch(paths ...[]string) {
 	keys := make(map[string]struct{})