Fix the example in the config template (#21869)

* fix example

* changelog

Author: steveny91

coredns/assets/configuration/spec.yaml

@@ -18,9 +18,9 @@ files:
         tags.value.example:
           - "dns-pod:%%host%%"
         extra_metrics.value.example:
-          - coredns_template_matches_total: template_matches_count
-          - coredns_template_template_failures_total: template_templating_failures_count
-          - coredns_template_rr_failures_total: template_resource_record_failures_count
+          - coredns_template_matches: template_matches
+          - coredns_template_template_failures: template_templating_failures
+          - coredns_template_rr_failures: template_resource_record_failures
     - template: instances/openmetrics_legacy_base
       hidden: true
       overrides:

coredns/changelog.d/21869.fixed

@@ -0,0 +1 @@
+Fix the example in the config template

coredns/datadog_checks/coredns/data/conf.yaml.example

@@ -114,9 +114,9 @@ instances:
     ##   ```
     #
     # extra_metrics:
-    #   - coredns_template_matches_total: template_matches_count
-    #   - coredns_template_template_failures_total: template_templating_failures_count
-    #   - coredns_template_rr_failures_total: template_resource_record_failures_count
+    #   - coredns_template_matches: template_matches
+    #   - coredns_template_template_failures: template_templating_failures
+    #   - coredns_template_rr_failures: template_resource_record_failures
 
     ## @param exclude_metrics - list of strings - optional
     ## A list of metrics to exclude, with each entry being either