[maven-release-plugin] prepare release build-helper-maven-plugin-3.1.0

Author: stefanseifert

pom.xml

@@ -9,7 +9,7 @@
   </parent>
 
   <artifactId>build-helper-maven-plugin</artifactId>
-  <version>3.1.0-SNAPSHOT</version>
+  <version>3.1.0</version>
   <packaging>maven-plugin</packaging>
   <url>http://www.mojohaus.org/build-helper-maven-plugin/</url>
 
@@ -60,7 +60,7 @@
     <connection>scm:git:https://github.com/mojohaus/build-helper-maven-plugin.git</connection>
     <developerConnection>scm:git:ssh://[email protected]/mojohaus/build-helper-maven-plugin.git</developerConnection>
     <url>https://github.com/mojohaus/build-helper-maven-plugin</url>
-    <tag>HEAD</tag>
+    <tag>build-helper-maven-plugin-3.1.0</tag>
   </scm>
   <issueManagement>
     <system>GitHub</system>