Consistent @⁠Contract expression formatting

Author: sbrannen

spring-beans/src/main/java/org/springframework/beans/factory/support/DefaultListableBeanFactory.java

@@ -2249,7 +2249,7 @@ protected boolean matchesBeanName(String beanName, @Nullable String candidateNam
 	 * i.e. whether the candidate points back to the original bean or to a factory method
 	 * on the original bean.
 	 */
-	@Contract("null, _ -> false;_, null -> false;")
+	@Contract("null, _ -> false; _, null -> false;")
 	private boolean isSelfReference(@Nullable String beanName, @Nullable String candidateName) {
 		return (beanName != null && candidateName != null &&
 				(beanName.equals(candidateName) || (containsBeanDefinition(candidateName) &&