Fix syntax.

Jenkinsfile

@@ -26,7 +26,7 @@ pipeline {
                     // get all the maven modules and their dependencies
                     Jenkins.getInstance().getAllItems(hudson.maven.MavenModule.class).each { m ->
                             modules2deps[m.name] = []
-                            m.getDependencies().each { d -> modules2deps[m.name] << "${d.groupId}:${d.artifactId" }
+                            m.getDependencies().each { d -> modules2deps[m.name] << "${d.groupId}:${d.artifactId}" }
                     }
                     println "FOUND ${modules2deps.size()} modules"
                     modules2deps.each { k,v -> println ("MODULE ${k} DEPENDS on ${v}") }