old_contents: """
  Return information about the given platform.
  """
  
  
  import sys
  
  
  class Platform(object):
  
      @staticmethod
      def is_darwin(name=None):
          name = name or sys.platform
          return 'darwin' in name
  
      @staticmethod
      def is_freebsd(name=None):
          name = name or sys.platform
          return name.startswith("freebsd")
  
      @staticmethod
      def is_linux(name=None):
          name = name or sys.platform
          return 'linux' in name
  
      @staticmethod
      def is_bsd(name=None):
          """ Return true if this is a BSD like operarting system. """
          name = name or sys.platform
          return Platform.is_darwin(name) or Platform.is_freebsd(name)
  
      @staticmethod
      def is_solaris(name=None):
          name = name or sys.platform
          return name == "sunos5"
  
      @staticmethod
      def is_unix(name=None):
          """ Return true if the platform is a unix, False otherwise. """
          name = name or sys.platform
          return (Platform.is_darwin()
                  or Platform.is_linux()
                  or Platform.is_freebsd()
          )
  
  
new_contents: """
  Return information about the given platform.
  """
  
  
  import sys
  
  
  class Platform(object):
  
      @staticmethod
      def is_darwin(name=None):
          name = name or sys.platform
          return 'darwin' in name
  
      @staticmethod
      def is_freebsd(name=None):
          name = name or sys.platform
          return name.startswith("freebsd")
  
      @staticmethod
      def is_linux(name=None):
          name = name or sys.platform
          return 'linux' in name
  
      @staticmethod
      def is_bsd(name=None):
          """ Return true if this is a BSD like operating system. """
          name = name or sys.platform
          return Platform.is_darwin(name) or Platform.is_freebsd(name)
  
      @staticmethod
      def is_solaris(name=None):
          name = name or sys.platform
          return name == "sunos5"
  
      @staticmethod
      def is_unix(name=None):
          """ Return true if the platform is a unix, False otherwise. """
          name = name or sys.platform
          return (Platform.is_darwin()
                  or Platform.is_linux()
                  or Platform.is_freebsd()
          )
  
  
subject: Fix typo