Use simple exception var name.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1306035 13f79535-47bb-0310-9956-ffa450edef68

Author: garydgregory

src/test/java/org/apache/commons/codec/binary/Base64Codec13Test.java

@@ -512,8 +512,8 @@ private static byte[] utf8(String s) {
 
         try {
             return s != null ? s.getBytes("UTF-8") : null;
-        } catch (UnsupportedEncodingException uee) {
-            throw new IllegalStateException(uee.toString());
+        } catch (UnsupportedEncodingException e) {
+            throw new IllegalStateException(e.toString());
         }
     }
 }