Improve error presentation

Author: alexrudall

lib/openai.rb

@@ -26,6 +26,9 @@ def call(env)
       raise e unless e.response.is_a?(Hash)
 
       logger = Logger.new($stdout)
+      logger.formatter = proc do |severity, datetime, progname, msg|
+        "\033[31mOpenAI HTTP Error (spotted in ruby-openai #{VERSION}): #{msg}\n\033[0m"
+      end
       logger.error(e.response[:body])
 
       raise e