Merge pull request #10318 from jkschneider:patch-1

* pr/10318:
  Make WebMvcMetrics#tagWithException public

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/servlet/WebMvcMetrics.java

@@ -85,7 +85,7 @@ public class WebMvcMetrics {
 		this.recordAsPercentiles = recordAsPercentiles;
 	}
 
-	void tagWithException(Throwable exception) {
+	public void tagWithException(Throwable exception) {
 		RequestAttributes attributes = RequestContextHolder.getRequestAttributes();
 		attributes.setAttribute(EXCEPTION_ATTRIBUTE, exception,
 				RequestAttributes.SCOPE_REQUEST);