Fix line distance in push and merge scripts.


git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@19628 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix ChangeLog entries.

NOTREECHECKS=true
BUG=

Review URL: https://codereview.chromium.org/179873021

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@19629 ce2b1a6d-e550-0410-aec6-3dcde31c8c00