Consistently use tabs rather than spaces

Update code that has accidentally used spaces instead of tabs.
Also remove all trailing whitespace.

Issue: SPR-16968

spring-context-support/src/main/java/org/springframework/scheduling/quartz/SchedulerFactoryBean.java

@@ -190,7 +190,7 @@ public class SchedulerFactoryBean extends SchedulerAccessor implements FactoryBe
 	private DataSource nonTransactionalDataSource;
 
 	@Nullable
-    private Map<String, ?> schedulerContextMap;
+	private Map<String, ?> schedulerContextMap;
 
 	@Nullable
 	private ApplicationContext applicationContext;