Use released version of maven bundle plugin.

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@614130 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/commons/log4j/pom.xml b/commons/log4j/pom.xml
index 95dbf31..694b077 100644
--- a/commons/log4j/pom.xml
+++ b/commons/log4j/pom.xml
@@ -62,6 +62,7 @@
             <plugin>
                 <groupId>org.apache.felix</groupId>
                 <artifactId>maven-bundle-plugin</artifactId>
+                <version>1.2.0</version>
                 <extensions>true</extensions>
                 <configuration>
                     <instructions>