Lower sync_build to 5s interval
Lower sync_build to 5s interval

bowlofstew/changes,bowlofstew/changes,dropbox/changes,wfxiang08/changes,bowlofstew/changes,dropbox/changes,bowlofstew/changes,dropbox/changes,wfxiang08/changes,dropbox/changes,wfxiang08/changes,wfxiang08/changes