INFRA-15791: Add travis build file to RAT ignores


git-svn-id: https://svn.apache.org/repos/asf/creadur/rat/trunk@1820236 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 98b872b..e6e52e2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -346,6 +346,7 @@
           <configuration>
             <excludes>
               <!-- This file only describes how to build the project and it has no license header -->
+              <exclude>.travis.yml</exclude>
               <exclude>BUILD.txt</exclude>
               <!-- rat:check does not seem to use exclusions from modules -->
               <exclude>apache-rat/README*.txt</exclude>