BUG#11678: mysqldump --master-data should fail if master binlog disabled

client/mysqldump.c:
  Add error message in case master does not have binlogging enabled

client/mysqldump.c

@@ -2356,6 +2356,7 @@ static int do_show_master_status(MYSQL *mysql_con)
     row = mysql_fetch_row(master);
     if (row && row[0] && row[1])
     {
+      /* SHOW MASTER STATUS reports file and position */
       if (opt_comments)
         fprintf(md_result_file,
                 "\n--\n-- Position to start replication or point-in-time "
@@ -2365,6 +2366,14 @@ static int do_show_master_status(MYSQL *mysql_con)
               comment_prefix, row[0], row[1]); 
       check_io(md_result_file);
     }
+    else if (!ignore_errors)
+    {
+      /* SHOW MASTER STATUS reports nothing and --force is not enabled */
+      my_printf_error(0, "Error: Binlogging on server not active", 
+		      MYF(0), mysql_error(mysql_con));
+      mysql_free_result(master);
+      return 1;
+    }
     mysql_free_result(master);
   }
   return 0;