take into account C/C specific CR_ERR_NET_WRITE error

Author: vuvova

mysql-test/suite/sys_vars/t/innodb_fatal_semaphore_wait_threshold.test

@@ -82,7 +82,7 @@ let $counter= 80;
 let $mysql_errno= 0;
 while (!$mysql_errno)
 {
- --error 0,ER_SERVER_SHUTDOWN,ER_CONNECTION_KILLED,2002,2006,2013
+ --error 0,ER_SERVER_SHUTDOWN,ER_CONNECTION_KILLED,2002,2006,2013,5014
  show status;
 
  dec $counter;