avoid a variable factor.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@5807 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/Util.java

@@ -337,7 +337,7 @@ public class Util {
     
     public static String getDigestOf(String text) {
         try {
-            return getDigestOf(new ByteArrayInputStream(text.getBytes()));
+            return getDigestOf(new ByteArrayInputStream(text.getBytes("UTF-8")));
         } catch (IOException e) {
             throw new Error(e);
         }