Remove .log suffix from default event.dataset (#63)

spec/spec.json

@@ -89,15 +89,15 @@
  "type": "string",
  "required": false,
  "url": "https://www.elastic.co/guide/en/ecs/current/ecs-event.html",
- "default": "${service.name}.log OR ${service.name}.${appender.name}",
+ "default": "${service.name} OR ${service.name}.${appender.name}",
  "comment": [
  "Configurable by users.",
  "If the user manually configures the service name,",
- "the logging library should set `event.dataset=${service.name}.log` if not explicitly configured otherwise.",
+ "the logging library should set `event.dataset=${service.name}` if not explicitly configured otherwise.",
  "",
  "When agents auto-configure the app to use an ECS logger,",
  "they should set `event.dataset=${service.name}.${appender.name}` if the appender name is available in the logging library.",
- "Otherwise, agents should also set `event.dataset=${service.name}.log`",
+ "Otherwise, agents should also set `event.dataset=${service.name}`",
  "",
  "The field helps to filter for different log streams from the same pod, for example and is required for log anomaly detection."
  ]