Update pkg/vault/contracts/Vault.sol

Co-authored-by: EndymionJkb <[email protected]>

pkg/vault/contracts/Vault.sol

@@ -1325,7 +1325,7 @@ contract Vault is IVaultMain, VaultCommon, Proxy {
                 vaultUnderlyingDeltaHint = wrappedToken.redeem(vaultWrappedDeltaHint, address(this), address(this));
             } else {
                 // EXACT_OUT requires the exact amount of underlying tokens to be returned, so we call withdraw.
-                // The amount of underlying tokens to withdraw is the necessary amount to fulfill the trade
+                // The amount of underlying tokens to withdraw is the amount necessary to fulfill the trade
                 // (amountOutUnderlying), less the excess amount of underlying assets in the buffer
                 // (bufferUnderlyingImbalance). `bufferUnderlyingImbalance` may be positive if buffer has an excess of
                 // underlying, or negative if the buffer has an excess of wrapped tokens. `vaultUnderlyingDeltaHint`