Polish

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/mongo/MongoProperties.java

@@ -191,9 +191,8 @@ public class MongoProperties {
 
 	/**
 	 * Creates a {@link MongoClient} using the given {@code options} and
-	 * {@code environment}. If the configured port is zero, the value of the
+	 * {@code environment}. If the environment contains a {@code local.mongo.port}
-	 * {@code local.mongo.port} property retrieved from the {@code environment} is used to
+	 * property, it is used to configure a client to an embedded MongoDB instance.
-	 * configure the client.
 	 * @param options the options
 	 * @param environment the environment
 	 * @return the Mongo client