test: synchronizing specs (#36)

Co-authored-by: apmmachine <[email protected]>

Author: apmmachine

tests/resources/spec.json

@@ -9,7 +9,11 @@
             "type": "datetime",
             "required": true,
             "index": 0,
-            "url": "https://www.elastic.co/guide/en/ecs/current/ecs-base.html"
+            "url": "https://www.elastic.co/guide/en/ecs/current/ecs-base.html",
+            "comment": [
+                "Field order, as specified by 'index', is RECOMMENDED.",
+                "ECS loggers must implement field order unless the logging framework makes that impossible."
+            ]
         },
         "log.level": {
             "type": "string",
@@ -42,11 +46,7 @@
             "url": "https://www.elastic.co/guide/en/ecs/current/ecs-base.html",
             "sanitization": {
                 "key": {
-                    "replacements": [
-                        ".",
-                        "*",
-                        "\\"
-                    ],
+                    "replacements": [".", "*", "\\"],
                     "substitute": "_"
                 }
             }
@@ -136,4 +136,4 @@
             "comment": "The stack trace of the exception as plain text."
         }
     }
-}
+}