HADOOP-17587. Kinit with keytab should not display the keytab file's full path in any logs. Contributed by Ravuri Sushma sree.

(cherry picked from commit bc7689abf5)

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java

@@ -1126,9 +1126,10 @@ static void loginUserFromKeytab(String user,
 
     setLoginUser(u);
 
-    LOG.info("Login successful for user {} using keytab file {}. Keytab auto" +
-            " renewal enabled : {}",
-            user, path, isKerberosKeyTabLoginRenewalEnabled());
+    LOG.info(
+        "Login successful for user {} using keytab file {}. Keytab auto"
+            + " renewal enabled : {}",
+        user, new File(path).getName(), isKerberosKeyTabLoginRenewalEnabled());
   }
 
   /**