Add groupId to log4j-bom.


git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/tags/log4j-2.0.1@1614531 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/log4j-bom/pom.xml b/log4j-bom/pom.xml
index 8daf391..4089da9 100644
--- a/log4j-bom/pom.xml
+++ b/log4j-bom/pom.xml
@@ -8,6 +8,7 @@
   <modelVersion>4.0.0</modelVersion>
   <name>Apache Log4j 2 BOM</name>
   <description>Apache Log4j 2 Bill of Material</description>
+  <groupId>org.apache.logging.log4j</groupId>
   <artifactId>log4j-bom</artifactId>
   <version>2.0.1</version>
   <packaging>pom</packaging>