[maven-release-plugin] prepare release maven-help-plugin-3.1.0
diff --git a/pom.xml b/pom.xml
index 8ac8ae9..86b5af2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,9 +19,7 @@
   under the License.
 -->
 
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
@@ -32,7 +30,7 @@
   </parent>
 
   <artifactId>maven-help-plugin</artifactId>
-  <version>3.1.0-SNAPSHOT</version>
+  <version>3.1.0</version>
   <packaging>maven-plugin</packaging>
 
   <name>Apache Maven Help Plugin</name>
@@ -52,7 +50,7 @@
     <connection>scm:git:https://gitbox.apache.org/repos/asf/maven-help-plugin.git</connection>
     <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/maven-help-plugin.git</developerConnection>
     <url>https://github.com/apache/maven-help-plugin/tree/${project.scm.tag}</url>
-    <tag>HEAD</tag>
+    <tag>maven-help-plugin-3.1.0</tag>
   </scm>
   <issueManagement>
     <system>JIRA</system>
@@ -256,8 +254,7 @@
                   ! Added the following ignores cause our target is JDK 7 
                   ! The given classes are JDK 8 compiled.
                 -->
-                <enforceBytecodeVersion
-                  combine.children="append">
+                <enforceBytecodeVersion combine.children="append">
                   <ignoreClasses>
                     <ignoreClass>com.thoughtworks.xstream.converters.reflection.LambdaConverter</ignoreClass>
                     <ignoreClass>com.thoughtworks.xstream.mapper.LambdaMapper</ignoreClass>