Checkstyle: Line has trailing spaces.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1744144 13f79535-47bb-0310-9956-ffa450edef68

Author: garydgregory

src/main/java/org/apache/commons/codec/digest/HmacAlgorithms.java

@@ -243,7 +243,7 @@ public String hmacHex(final String key, final String valueToDigest) {
 
     /**
      * Returns whether this algorithm is available
-     * 
+     *
      * @return whether this algorithm is available
      */
     public boolean isAvailable() {