There's a typo in the description of hive.tez.input.generate.consistent.splits: "Whether to generate consisten split" – need "t" for consistent.
Several of the new hive.llap.* configs don't have descriptions. Are they for internal use only?
Please add newlines (\n) in the description of hive.llap.queue.metrics.percentiles.intervals and keep the indentation identical for all three lines of the description. (And to pick a nit, a few config description indentations are off by one character, including that one.)