Your diff appears to have a huge amount of context around the changes. Is that intentional?
It was an attempt to make reviewing easier. You can see from the expanded context that these variables are initialized once, then initialized again, and never used in between.
For what it's worth, my approach when reviewing has been to apply the patch locally (by piping 'curl' from the patch tracking website to 'git am') and viewing the commit in gitk, which allows me to decide exactly how much context I want, or just view the new version in an editor. I have to do that anyway to run the tests.