SLING-6717 : Use commons lang3

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1788914 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 9b3a87e..1cdfd4b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -135,7 +135,7 @@
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>
-            <version>3.5</version>
+            <version>3.4</version>
             <scope>provided</scope>
         </dependency>
     </dependencies>