message: clarify in comment the case if a denom doesn not exist
diff: @@ -24,7 +24,7 @@ pub enum BankQuery {
  #[serde(rename_all = "snake_case")]
  pub struct SupplyResponse {
  /// Always returns a Coin with the requested denom.
  - /// This may be of 0 amount if no such funds.
  + /// This will be of zero amount if the denom does not exist.
  pub amount: Coin,
  }
  