Correct MultiColumnParserFactory class name

Change-Id: I35dcfd5d835c0f2997ef956f0768fd60218212b3

gitiles-servlet/src/main/java/com/google/gitiles/doc/MultiColumnExtension.java

diff --git a/gitiles-servlet/src/main/java/com/google/gitiles/doc/MultiColumnExtension.java b/gitiles-servlet/src/main/java/com/google/gitiles/doc/MultiColumnExtension.java
index ef53fe3..da1a068 100644
--- a/gitiles-servlet/src/main/java/com/google/gitiles/doc/MultiColumnExtension.java
+++ b/gitiles-servlet/src/main/java/com/google/gitiles/doc/MultiColumnExtension.java
@@ -46,7 +46,7 @@
 
   @Override
   public void extend(Parser.Builder builder) {
-    builder.customBlockParserFactory(new DivParserFactory());
+    builder.customBlockParserFactory(new MultiColumnParserFactory());
   }
 
   private static class MultiColumnParser extends AbstractBlockParser {
@@ -151,7 +151,7 @@
     }
   }
 
-  private static class DivParserFactory extends AbstractBlockParserFactory {
+  private static class MultiColumnParserFactory extends AbstractBlockParserFactory {
     @Override
     public BlockStart tryStart(ParserState state, MatchedBlockParser matched) {
       if (state.getIndent() > 0) {