Fix whitespace per PR review comments.

src/main/java/com/seriouscompany/business/java/fizzbuzz/packagenamingpackage/impl/ApplicationContextHolder.java

@@ -9,23 +9,23 @@
 public class ApplicationContextHolder implements ApplicationContextAware {
 
 	private static ApplicationContext applicationContext;
-	
+
 	private static class ApplicationContextReferenceUpdater {
-	    void updateApplicationContextReference(final ApplicationContext applicationContext) {
-	        ApplicationContextHolder.applicationContext = applicationContext;
-	    }
+		void updateApplicationContextReference(final ApplicationContext applicationContext) {
+			ApplicationContextHolder.applicationContext = applicationContext;
+		}
 	}
-	
+
 	private static class ApplicationContextReferenceUpdaterHolder {
-	    static ApplicationContextReferenceUpdater INSTANCE = new ApplicationContextReferenceUpdater();
+		static ApplicationContextReferenceUpdater INSTANCE = new ApplicationContextReferenceUpdater();
 	}
 
 	private ApplicationContextHolder() {
 		super();
 	}
 
 	@Override
-    public void setApplicationContext(final ApplicationContext applicationContext) throws BeansException {
+	public void setApplicationContext(final ApplicationContext applicationContext) throws BeansException {
 		ApplicationContextReferenceUpdaterHolder.INSTANCE.updateApplicationContextReference(applicationContext);
 	}