Make groupId explicit, rather than inheriting from parent.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/compress/trunk@947037 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 2648c3a..9ba76f5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,6 +25,7 @@
     <version>15</version>
   </parent>
 
+  <groupId>org.apache.commons</groupId>
   <artifactId>commons-compress</artifactId>
   <version>1.1-SNAPSHOT</version>
   <name>Commons Compress</name>