Misread the spec, should use spaces instead of commas

http://java.sun.com/j2se/1.3/docs/guide/extensions/versioning.html


git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@113314 13f79535-47bb-0310-9956-ffa450edef68

jar/plugin.jelly

@@ -63,7 +63,7 @@
           <j:set var="extensionList" value=""/>
           <j:forEach var="artifact" items="${pom.artifacts}">
             <j:set var="dep" value="${artifact.dependency}"/>
-            <j:set var="extensionList" value="${extensionList},${dep.artifactId}"/>
+            <j:set var="extensionList" value="${extensionList} ${dep.artifactId}"/>
           </j:forEach>
 
 		  <j:if test="${extensionList.length() != 0}">