MAPREDUCE-6553. Replace '\u2b05' with '<-' in rendering job configuration. Contributed by Gabor Liptak.

(cherry picked from commit 5ec44fc35c129d266edaebbc6fa17754a89b2ad6)

hadoop-mapreduce-project/CHANGES.txt

@@ -352,6 +352,9 @@ Release 2.8.0 - UNRELEASED
 
     MAPREDUCE-6540. TestMRTimelineEventHandling fails (sjlee)
 
+    MAPREDUCE-6553. Replace '\u2b05' with '<-' in rendering job configuration.
+    (Gabor Liptak via aajisaka)
+
 Release 2.7.3 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/ConfBlock.java

@@ -90,8 +90,7 @@ public class ConfBlock extends HtmlBlock {
         boolean first = true;
         for(int i = (sources.length  - 2); i >= 0; i--) {
           if(!first) {
-            // \u2B05 is an arrow <--
-            buffer.append(" \u2B05 ");
+            buffer.append(" <- ");
           }
           first = false;
           buffer.append(sources[i]);