Switch to tabs, and adjust tabsizing in asciidoctor.

Author: gregturn

README.adoc

@@ -148,7 +148,7 @@ listing (from `src/main/java/com/example/integration/IntegrationApplication.java
 the application file:
 
 ====
-[source,java]
+[source,java,tabsize=2]
 ----
 include::complete/src/main/java/com/example/integration/IntegrationApplication.java[]
 ----
@@ -206,7 +206,7 @@ Examine the `complete` project and you will see a test case, in
 `src/test/java/com/example/integration/FlowTests.java`:
 
 ====
-[source,java]
+[source,java,tabsize=2]
 ----
 include::complete/src/test/java/com/example/integration/FlowTests.java[]
 ----

complete/src/main/java/com/example/integration/IntegrationApplication.java

@@ -8,11 +8,11 @@
 @SpringBootApplication
 @ImportResource("/integration/integration.xml")
 public class IntegrationApplication {
-    public static void main(String[] args) throws Exception {
-        ConfigurableApplicationContext ctx = new SpringApplication(IntegrationApplication.class).run(args);
-        System.out.println("Hit Enter to terminate");
-        System.in.read();
-        ctx.close();
-    }
+	public static void main(String[] args) throws Exception {
+		ConfigurableApplicationContext ctx = new SpringApplication(IntegrationApplication.class).run(args);
+		System.out.println("Hit Enter to terminate");
+		System.in.read();
+		ctx.close();
+	}
 
 }

complete/src/test/java/com/example/integration/FlowTests.java

@@ -16,8 +16,8 @@
 
 import com.rometools.rome.feed.synd.SyndEntryImpl;
 
-@SpringBootTest({ "auto.startup=false",      // we don't want to start the real feed
-                  "feed.file.name=Test" })   // use a different file
+@SpringBootTest({ "auto.startup=false",	  // we don't want to start the real feed
+				  "feed.file.name=Test" })   // use a different file
 public class FlowTests {
 
 	@Autowired