Explicit call to super is redundant
diff --git a/src/main/java/org/apache/commons/validator/routines/checkdigit/CUSIPCheckDigit.java b/src/main/java/org/apache/commons/validator/routines/checkdigit/CUSIPCheckDigit.java
index 7c60ac4..b263223 100644
--- a/src/main/java/org/apache/commons/validator/routines/checkdigit/CUSIPCheckDigit.java
+++ b/src/main/java/org/apache/commons/validator/routines/checkdigit/CUSIPCheckDigit.java
@@ -52,7 +52,6 @@
      * Constructs a CUSIP Identifier Check Digit routine.
      */
     public CUSIPCheckDigit() {
-        super();
     }
 
     /**