Fixed error message about explicit type conversion.
Fixed error message about explicit type conversion.

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