anchor.diff:  ==== Duration format
   
   The _duration_ format is used for options like timeouts.
  -The unit is provided as suffix directly after the number, without and separation by whitespace.
  +The unit is provided as a suffix directly after the number–without any separation by whitespace.
   
   *Example*: `5ms`
   
  
positive.code: | `ELASTIC_APM_TRANSACTION_MAX_SPANS` | `TRANSACTION_MAX_SPANS` | `500`
  |============
  
  Limits the amount of spans that are recorded per transaction.
  This is helpful in cases where a transaction creates a very high amount of spans (e.g. thousands of SQL queries).
  Setting an upper limit will prevent overloading the agent and the APM Server with too much work for such edge cases.
  
  [float]
  [[config-stack-trace-limit]]
  
negative.code: | `ELASTIC_APM_LOG_FILE_SIZE` | `LOG_FILE_SIZE` | `"50mb"`    | `"100mb"`
  |============
  
  The size of the log file if <<config-log_file>> is set.
  
  The agent always keeps one backup file when rotating, so the maximum space that
  the log files will consume is twice the value of this setting.
  
  [float]
  