Improve revert message in Governor (#3275)

* Fixed typo

* fix testing and adding changelog

Co-authored-by: Hadrien Croubois <hadrien.croubois@gmail.com>

CHANGELOG.md

@@ -8,8 +8,9 @@
  * `ERC1155`: Add a `_afterTokenTransfer` hook for improved extensibility. ([#3166](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3166))
  * `DoubleEndedQueue`: a new data structure that supports efficient push and pop to both front and back, useful for FIFO and LIFO queues. ([#3153](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3153))
  * `Governor`: improved security of `onlyGovernance` modifier when using an external executor contract (e.g. a timelock) that can operate without necessarily going through the governance protocol. ([#3147](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3147))
- * `ERC20FlashMint`: support infinite allowance when paying back a flash loan. ([#3226](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3226))
  * `Governor`: Add a way to parameterize votes. This can be used to implement voting systems such as fractionalized voting, ERC721 based voting, or any number of other systems. The `params` argument added to `_countVote` method, and included in the newly added `_getVotes` method, can be used by counting and voting modules respectively for such purposes. ([#3043](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3043))
+ * `Governor`: rewording of revert reason for consistency. ([#3275](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3275))
+ * `ERC20FlashMint`: support infinite allowance when paying back a flash loan. ([#3226](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3226))
  * `TimelockController`: Add a separate canceller role for the ability to cancel. ([#3165](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3165))
  * `draft-ERC20Permit`: replace `immutable` with `constant` for `_PERMIT_TYPEHASH` since the `keccak256` of string literals is treated specially and the hash is evaluated at compile time. ([#3196](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3196))
  * `ERC20Wrapper`: the `decimals()` function now tries to fetch the value from the underlying token instance. If that calls revert, then the default value is used. ([#3259](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3259))

contracts/governance/Governor.sol

@@ -250,7 +250,7 @@ abstract contract Governor is Context, ERC165, EIP712, IGovernor, IERC721Receive
     ) public virtual override returns (uint256) {
         require(
             getVotes(_msgSender(), block.number - 1) >= proposalThreshold(),
-            "GovernorCompatibilityBravo: proposer votes below proposal threshold"
+            "Governor: proposer votes below proposal threshold"
         );
 
         uint256 proposalId = hashProposal(targets, values, calldatas, keccak256(bytes(description)));

test/governance/compatibility/GovernorCompatibilityBravo.test.js

@@ -218,7 +218,7 @@ contract('GovernorCompatibilityBravo', function (accounts) {
       it('if proposal does not meet proposalThreshold', async function () {
         await expectRevert(
           this.helper.propose({ from: other }),
-          'GovernorCompatibilityBravo: proposer votes below proposal threshold',
+          'Governor: proposer votes below proposal threshold',
         );
       });
     });