Update release notes regarding removal of Ant code and potential replacements (#2153)

Author: Vampire

docs/getting_started.adoc

@@ -11,7 +11,6 @@ So why not run https://groovyconsole.dev/?g=groovy_4_0&codez=eNpdizEKg0AQRfs9xU8
 
 == Spock Example Project
 
-To try Spock in your local environment, clone or download/unzip the
-https://github.com/spockframework/spock-example[Spock Example Project]. It comes with fully working Ant, Gradle, and
-Maven builds that require no further setup. The Gradle build even bootstraps Gradle itself and gets you up and
-running in Eclipse or IDEA with a single command. See the README for detailed instructions.
+To try Spock in your local environment, clone or download/unzip the {spock-example-project}[Spock Example Project].
+It comes with fully working Ant, Gradle, and Maven builds that require no further setup. The Gradle build even bootstraps
+Gradle itself and gets you up and running in Eclipse or IDEA with a single command. See the README for detailed instructions.

docs/include.adoc

@@ -34,3 +34,5 @@
 :base-sourcedir-spring-boot: spock-spring/boot2-test/src/test/groovy/org/spockframework/boot2
 :sourcedir-spring-boot: ../{base-sourcedir-spring-boot}
 :github-sourcedir-spring-boot: {github-blob-base}/{commit-ish}/{base-sourcedir-spring-boot}
+// Common Includes
+:spock-example-project: https://github.com/spockframework/spock-example

docs/release_notes.adoc

@@ -1,7 +1,8 @@
 [[release-notes]]
 = Release Notes
-
 include::include.adoc[]
+:SpecClassFileSelector: https://github.com/spockframework/spock/blob/03818ed010f4b4ca1136a292e214f79d518c4abe/spock-core/src/main/java/org/spockframework/buildsupport/ant/SpecClassFileSelector.java
+:scriptselector: {spock-example-project}/blob/963fd34d1609b7025ba92502483ce31b2c6d9d0a/build.xml#L167-L176
 
 == 2.4 (tbd)
 
@@ -671,9 +672,17 @@ It can be set back to the old pre Spock 2.0 behaviour by setting
   will be thrown at runtime.
 
 // tag::breaking-change-removed-ant-support[]
-==== Ant support removed
-`SpecClassFileSelector` was removed, which was the only class that required `ant`.
-If you are still using spock with `ant`, then you can just copy the class from the spock source code into your build.
+==== Ant custom selector removed
+The class `SpecClassFileSelector` that could be used to only select actual Spock specification classes when testing
+and creating a test report was removed. It was the only class that required `ant` and was basically just a one-line
+forward to the `SpecClassFileFinder` which is still available.
+
+If you are still using Spock with `ant`, then you can just copy {SpecClassFileSelector}[the class from the spock source code]
+into your build, or you simply use a {scriptselector}[`<scriptselector>`] that does this forwarding as shown in the
+{spock-example-project}[Spock Example Project].
+
+Alternatively, you can also use a naming convention to find the classes that are actual specifications and not helper
+or base classes, or you live with a bit of wasted time and some meaningless entries in the test reports.
 // end::breaking-change-removed-ant-support[]
 
 === Misc
@@ -1229,7 +1238,7 @@ Howard M. Lewis Ship, Ken Sipe, Venkat Subramaniam, Russel Winder.
 * Improved and restyled reference documentation at https://docs.spockframework.org. Generated with
   https://asciidoctor.org/[Asciidoctor] (what else?).
 * Maven plugin removed. Just let Maven Surefire run your Spock specs like your JUnit tests
-  (see https://examples.spockframework.org[spock-example] project).
+  (see {spock-example-project}[spock-example] project).
 * Official support for Java 1.8, Groovy 2.3 and Groovy 2.4. Make sure to pick the `groovy-2.0` binaries for Groovy
   2.0/2.1/2.2, `groovy-2.3` binaries for Groovy 2.3, and `groovy-2.4` binaries for Groovy 2.4 and higher.
 * Improved infrastructure to allow for easier community involvement: Switch to
@@ -1787,7 +1796,7 @@ their types inferred from the values in the table (!).
 === GitHub Repository
 
 All source code has moved to https://github.spockframework.org/. The https://github.spockframework.org/spock-grails[Grails Spock plugin],
-https://github.spockframework.org/spock-example[Spock Example] project, and
+{spock-example-project}[Spock Example] project, and
 https://github.spockframework.org/spockwebconsole[Spock Web Console] now have their own GitHub projects.
 Also available are slides and code for various Spock presentations (such as
 https://github.spockframework.org/smarter-testing-with-spock[this one]).