MDEV-10311 - funcs_1.processlist_priv_no_prot fails sporadically

State column of SHOW PROCESSLIST can have NULL values for being initialized
threads (between new connection was acknowledged and waiting for network data).

Fixed test case to handle such cases by waiting for State to become empty
string.

mysql-test/suite/funcs_1/datadict/processlist_priv.inc

@@ -153,7 +153,7 @@ connection default;
 let $wait_timeout= 10;
 let $wait_condition=
 SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.PROCESSLIST
-WHERE DB = 'information_schema' AND COMMAND = 'Sleep' AND USER = 'ddicttestuser1';
+WHERE DB = 'information_schema' AND COMMAND = 'Sleep' AND USER = 'ddicttestuser1' AND state='';
 --source include/wait_condition.inc
 --replace_result ENGINE=MyISAM "" ENGINE=Aria "" " PAGE_CHECKSUM=1" "" " PAGE_CHECKSUM=0" ""
 eval SHOW CREATE TABLE $table;