Reads the update history from the JSON 'result_file'.
Parameters
result_file(Optional[String[1]])
— Log file for patching results. This file will contain the JSON output that is returned from these tasks. This is data that was written by patching::update. If no script name is passed on Linux hosts a default is used: /var/log/patching.json. If no script name is passed on Windows hosts a default is used: C:/ProgramData/patching/log/patching.json