style: make code more readable

Author: MerlinEgalite

src/libraries/ChainlinkDataFeedLib.sol

@@ -14,15 +14,18 @@ library ChainlinkDataFeedLib {
     /// @dev When `feed` is the address zero, returns 1.
     function getPrice(AggregatorV3Interface feed) internal view returns (uint256) {
         if (address(feed) == address(0)) return 1;
+
         (, int256 answer,,,) = feed.latestRoundData();
         require(answer >= 0, ErrorsLib.NEGATIVE_ANSWER);
+
         return uint256(answer);
     }
 
     /// @dev Returns the number of decimals of a feed.
     /// @dev When `feed` is the address zero, returns 0.
     function getDecimals(AggregatorV3Interface feed) internal view returns (uint256) {
         if (address(feed) == address(0)) return 0;
+
         return feed.decimals();
     }
 }