HADOOP-17700. ExitUtil#halt info log should log HaltException (#3015)

Reviewed-by: Steve Loughran <stevel@apache.org>
Reviewed-by: Wei-Chiu Chuang <weichiu@apache.org>
(cherry picked from commit c70ee2d548feb9ec9a957e120045983dd21d9964)

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/ExitUtil.java

@@ -232,8 +232,7 @@ public final class ExitUtil {
     try {
       if (status != 0) {
         //exit indicates a problem, log it
-        LOG.debug("Halt with status {}: {}", status, msg, ee);
-        LOG.info("Halt with status {}: {}", status, msg, msg);
+        LOG.info("Halt with status {}: {}", status, msg, ee);
       }
     } catch (Exception ignored) {
       // ignore exceptions here, as it may be due to an out of memory situation