Remove whitespace

Author: sarah-witt

datadog_checks_dev/datadog_checks/dev/tooling/templates/configuration/instances/default.yaml

@@ -11,7 +11,7 @@
 - name: metric_patterns
   description: |
     A mapping of metrics to include or exclude, with each entry being a regular expression.
-  
+
     Metrics defined in `exclude` will take precedence in case of overlap.
   value:
     example: