upgrade parent pom

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/compress/trunk@1635920 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index e9e9ac4..df58168 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-parent</artifactId>
-    <version>34</version>
+    <version>35</version>
   </parent>
 
   <groupId>org.apache.commons</groupId>