When someone runs prepare-ChangeLog for git and the person has an external diff tool set-up, that tool gets launched and the ChangeLog doesn't get the appropriate information listed in it.
Created attachment 26139 [details] Patch for bug.
Committing to http://svn.webkit.org/repository/webkit/trunk ... M WebKitTools/ChangeLog M WebKitTools/Scripts/prepare-ChangeLog Committed r39415