Here's what I'd do:

```ruby
def liftoff
  if @opts[:help]
    display_help
  elsif @opts[:version]
    display_version
  else
    if @opts[:git]
      generate_git
    end

    if @opts[:indentation]
      # I also suggest having set_indentation not take any arguments, since that
      # method can use @opts without it being passed in.
      set_indentation(@opts[:indentation])
    end

    if @opts[:errors]
      turn_on_errors
    end

    if @opts[:todo]
      add_todo_script
    end

    if @opts[:warnings]
      set_warning_level
    end

    if @opts[:staticanalyzer]
      turn_on_analysis
    end
  end
end
```