Improve documentation regarding git commit info

Closes gh-24205

Author: mbhave

spring-boot-project/spring-boot-docs/src/docs/asciidoc/howto.adoc

@@ -2535,6 +2535,8 @@ Gradle users can achieve the same result by using the https://plugins.gradle.org
 	}
 ----
 
+Both the Maven and Gradle plugins allow the properties that are included in `git.properties` to be configured.
+
 TIP: The commit time in `git.properties` is expected to match the following format: `yyyy-MM-dd'T'HH:mm:ssZ`.
 This is the default format for both plugins listed above.
 Using this format lets the time be parsed into a `Date` and its format, when serialized to JSON, to be controlled by Jackson's date serialization configuration settings.

spring-boot-project/spring-boot-docs/src/docs/asciidoc/production-ready-features.adoc

@@ -1108,11 +1108,13 @@ Assuming you use Maven, you could rewrite the preceding example as follows:
 [[production-ready-application-info-git]]
 ==== Git Commit Information
 Another useful feature of the `info` endpoint is its ability to publish information about the state of your `git` source code repository when the project was built.
-If a `GitProperties` bean is available, the `git.branch`, `git.commit.id`, and `git.commit.time` properties are exposed.
+If a `GitProperties` bean is available, the `info` endpoint can be used to expose these properties.
 
 TIP: A `GitProperties` bean is auto-configured if a `git.properties` file is available at the root of the classpath.
 See "<<howto.adoc#howto-git-info,Generate git information>>" for more details.
 
+By default, the endpoint exposes `git.branch`, `git.commit.id`, and `git.commit.time` properties, if present.
+If you don't want any of these properties in the endpoint response, they need to be excluded from the `git.properties` file.
 If you want to display the full git information (that is, the full content of `git.properties`), use the configprop:management.info.git.mode[] property, as follows:
 
 [source,properties,indent=0,configprops]