multi: fix make fmt

watchtower/wtmock/keyring.go

@@ -57,8 +57,8 @@ func (m *SecretKeyRing) DeriveKey(
 // sha256 of the resulting shared point serialized in compressed format. If k is
 // our private key, and P is the public key, we perform the following operation:
 //
-//  sx := k*P
-//  s := sha256(sx.SerializeCompressed())
+//	sx := k*P
+//	s := sha256(sx.SerializeCompressed())
 //
 // NOTE: This is part of the wtclient.ECDHKeyRing interface.
 func (m *SecretKeyRing) ECDH(keyDesc keychain.KeyDescriptor,