You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: curl.rb
    path of file: ./repos/passenger/src/ruby_supportlib/phusion_passenger/platform_info
    
    the code of the file until where you have to start completion: #  Phusion Passenger - https://www.phusionpassenger.com/
#  Copyright (c) 2010-2017 Phusion Holding B.V.
#
#  "Passenger", "Phusion Pas
    
    def self.curl_flags
      result = `(curl-config --cflags) 2>/dev/null`.strip
      if result.empty?
        return nil
      else
        version = `curl-config --vernum`.strip
        if version >= '070c01'
          # Curl >= 7.12.1 supports curl_easy_reset()
          result << " -DHAS_CURL_EASY_RESET"
        end