def most_significant(count = 10)
      support! :line_stats

      commits = CommitCollection.new
      sort_by { |commit| -commit.modifications }.each do |commit|
        commits << commit
        break if commits.size == count
      end
      commits
    end
def most_significant(count = 10)
      support! :line_stats

      commits = CommitCollection.new
      sort_by { |commit| -commit.modifications }.each do |commit|
        commits << commit
        break if commits.size == count
      end
      commits
    end
Returns the given number of commits with most line changes on the
 repository

 @param [Numeric] count The number of commits to return
 @return [CommitCollection] The given number of commits ordered by impact
 @see Commit#modifications