Fixed one findbugs warning, ignored another

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/compress/trunk@1650794 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/findbugs-exclude-filter.xml b/findbugs-exclude-filter.xml
index 7c207b2..f70be02 100644
--- a/findbugs-exclude-filter.xml
+++ b/findbugs-exclude-filter.xml
@@ -157,4 +157,12 @@
     <Method name="equals" />
     <Bug pattern="EQ_DOESNT_OVERRIDE_EQUALS" />
   </Match>
+  
+  <!-- Reason: failure to delete a file that may not exist. And we really don't care that much either -->
+  <Match>
+    <Class name="org.apache.commons.compress.archivers.zip.FileBasedScatterGatherBackingStore" />
+    <Method name="close" />
+    <Bug pattern="RV_RETURN_VALUE_IGNORED_BAD_PRACTICE" />
+  </Match>
+
 </FindBugsFilter>