trivial: no need to expose ParseException outside the mime package, since it is used internally only

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/fileupload/trunk@1456825 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/java/org/apache/commons/fileupload/util/mime/ParseException.java b/src/main/java/org/apache/commons/fileupload/util/mime/ParseException.java
index 7fd8884..1583879 100644
--- a/src/main/java/org/apache/commons/fileupload/util/mime/ParseException.java
+++ b/src/main/java/org/apache/commons/fileupload/util/mime/ParseException.java
@@ -19,7 +19,7 @@
 /**
  * @since 1.3
  */
-public final class ParseException extends Exception {
+final class ParseException extends Exception {
 
     /**
      * The UID to use when serializing this instance.