chore: fix typos

test/util/malicious/hasher.go

@@ -29,7 +29,7 @@ var (
 	ErrInvalidNodeNamespaceOrder = errors.New("invalid NMT node namespace order")
 )
 
-// Hasher describes the interface nmts use to hash leafs and nodes.
+// Hasher describes the interface nmts use to hash leaves and nodes.
 //
 // Note: it is not advised to create alternative hashers if following the
 // specification is desired. The main reason this exists is to not follow the

test/util/malicious/out_of_order_builder.go

@@ -15,7 +15,7 @@ import (
 
 type ExportFn func(builder *square.Builder) (square.Square, error)
 
-// Build takes an arbitrary long list of (prioritized) transactions and builds a square that is never
+// Build takes an arbitrarily long list of (prioritized) transactions and builds a square that is never
 // greater than maxSquareSize. It also returns the ordered list of transactions that are present
 // in the square and which have all PFBs trailing regular transactions. Note, this function does
 // not check the underlying validity of the transactions.

test/util/testnode/node_interaction_api.go

@@ -238,7 +238,7 @@ func (c *Context) PostData(account, broadcastMode string, ns share.Namespace, bl
 		return nil, err
 	}
 
-	// use the key for accounts[i] to create a singer used for a single PFB
+	// use the key for accounts[i] to create a signer used for a single PFB
 	signer, err := user.NewSigner(c.Keyring, c.TxConfig, c.ChainID, appconsts.LatestVersion, user.NewAccount(account, acc, seq))
 	if err != nil {
 		return nil, err