Update to latest parent pom

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/imaging/trunk@1687759 13f79535-47bb-0310-9956-ffa450edef68

Author: britter

pom.xml

@@ -26,7 +26,7 @@
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-parent</artifactId>
-    <version>37</version>
+    <version>38</version>
   </parent>
 
   <groupId>org.apache.commons</groupId>