fix compilation message
fix compilation message

serapath-contribution/browser-solidity,Yann-Liang/browser-solidity,soad003/browser-solidity,serapath-contribution/browser-solidity,serapath-contribution/browser-solidity,Yann-Liang/browser-solidity,soad003/browser-solidity,Yann-Liang/browser-solidity,soad003/browser-solidity