Fix XCRun Warning

Fix XCRun Warning
修正以下警告:

Warning: /usr/bin/atos is moving and will be removed from a future OS X
release.
It is now available in the Xcode developer tools to be invoked via:
`xcrun atos`
To silence this warning, pass the '-d' command-line flag to this tool.
Merge pull request #2 from iviedsky/master

Fix XCRun Warning