Merge branch 'mysql-5.6' into mysql-5.7

Author: Neha Kumari

client/mysqlbinlog.cc

@@ -2257,6 +2257,12 @@ static int parse_args(int *argc, char*** argv)
 */
 static Exit_status safe_connect()
 {
+  /*
+    A possible old connection's resources are reclaimed now
+    at new connect attempt. The final safe_connect resources
+    are mysql_closed at the end of program, explicitly.
+  */
+  mysql_close(mysql);
   mysql= mysql_init(NULL);
 
   if (!mysql)