changes for code review
changes for code review

LianaHus/solidity,ruchevits/solidity,debris/solidity,chriseth/solidity-doc-test,vaporry/solidity,shahankhatch/solidity,ruchevits/solidity,douglas-larocca/solidity,gluk256/solidity,ethers/solidity,chriseth/solidity,ruchevits/solidity,arkpar/solidity,ruchevits/solidity