build broken

[Lance Norskog]

SimpleCsvExamples.java has a compile error, at least for me.

As I don't believe in JIRA pollution for trivial bugs, a patch:

diff --git
examples/src/main/java/org/apache/mahout/classifier/sgd/SimpleCsvExamples.java
examples/src/main/java/org/apache/mahout/classifier/sgd/SimpleCsvExamples.java
index e08316c..2e71cc5 100644
---
examples/src/main/java/org/apache/mahout/classifier/sgd/SimpleCsvExamples.java
+++
examples/src/main/java/org/apache/mahout/classifier/sgd/SimpleCsvExamples.java
@@ -57,11 +57,12 @@ import java.util.Random;
  * This doesn't demonstrate text encoding which is subject to somewhat
different tricks.  The basic
  * idea of caching hash locations and byte level parsing still very much
applies to text, however.
  */
 public final class SimpleCsvExamples {

-  public static final char SEPARATOR_CHAR = '\t';
+  private static final char SEPARATOR_CHAR = '\t';
+  private static final String SEPARATOR_STRING = "\t";
   private static final int FIELDS = 100;

   private SimpleCsvExamples() {
   }

@@ -135,11 +136,11 @@ public final class SimpleCsvExamples {
   }


   private static final class Line {
     private static final Splitter ON_TABS =
Splitter.on(SEPARATOR_CHAR).trimResults();
-    public static final Joiner WITH_COMMAS = Joiner.on(SEPARATOR_CHAR);
+    private static final Joiner WITH_COMMAS = Joiner.on(SEPARATOR_STRING);

     public static final Random rand = RandomUtils.getRandom();

     private final List<String> data;