The whitespace warnings are reported on hadoop-common-project/hadoop-common/src/site/resources/core-default.xml which doesn't exist at all. Not in the patch, not on trunk, branch2. I also tried running mvn site to see if that gets generated - nope. If this happens again, we'll have to investigate more, but I have hit a dead-end here.
Anyways, it is unrelated to the patch.
The latest patch looks good to me. +1, checking this in.