This issue was solved with changeset r35974.
Zachary, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.
lib/benchmark.rb: Updated formatting of Benchmark documentation for
consistency. [ruby-trunk - Bug #6533]
I also stripped out the emphasis for the "Generates:" lines entirely since the ri looks better that way, and re-wrapped the comment for Benchmark#bm to fit 80 lines.