# File lib/mspec/runner/mspec.rb, line 295
295:   def self.write_tags(tags)
296:     file = tags_file
297:     path = File.dirname file
298:     FileUtils.mkdir_p path unless File.exist? path
299:     File.open(file, "wb") do |f|
300:       tags.each { |t| f.puts t }
301:     end
302:   end