Fix linter

.solhint.json

@@ -1,3 +1,6 @@
 {
-  "extends": "solhint:default"
+  "extends": "solhint:default",
+  "rules": {
+        "max-line-length": ["error", 140]
+  }
 }

contracts/USDM.sol

@@ -1,14 +1,14 @@
 // SPDX-License-Identifier: MIT
 pragma solidity 0.8.18;
 
-import {IERC20Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol";
-import {AccessControlUpgradeable} from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
-import {PausableUpgradeable} from "@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol";
 import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
 import {CountersUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/CountersUpgradeable.sol";
+import {IERC20Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol";
+import {PausableUpgradeable} from "@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol";
+import {ECDSAUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/cryptography/ECDSAUpgradeable.sol";
 import {EIP712Upgradeable} from "@openzeppelin/contracts-upgradeable/utils/cryptography/EIP712Upgradeable.sol";
+import {AccessControlUpgradeable} from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
 import {IERC20PermitUpgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/draft-IERC20PermitUpgradeable.sol";
-import {ECDSAUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/cryptography/ECDSAUpgradeable.sol";
 
 contract USDM is
     IERC20Upgradeable,
@@ -35,7 +35,6 @@ contract USDM is
     mapping(address => mapping(address => uint256)) private _allowances;
     mapping(address => CountersUpgradeable.Counter) private _nonces;
 
-    // solhint-disable-next-line var-name-mixedcase
     bytes32 private constant _PERMIT_TYPEHASH =
         keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");