Adjusted the Maven 2 groupId to match the Maven 1 groupId for CLI 1.x

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/cli/branches/cli-1.x@661495 13f79535-47bb-0310-9956-ffa450edef68

Author: ebourg

pom.xml

@@ -22,7 +22,7 @@
     <version>10</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
-  <groupId>org.apache.commons</groupId>
+  <groupId>commons-cli</groupId>
   <artifactId>commons-cli</artifactId>
   <version>1.2-SNAPSHOT</version>
   <name>Commons CLI</name>