fixes for windows

mysql-test/suite/plugins/r/audit_null_debug.result

-call mtr.add_suppression("mysql/plugin.MYI");
+call mtr.add_suppression("Incorrect key file for table.*mysql.plugin.MYI");
 SET debug_dbug='+d,myisam_pretend_crashed_table_on_usage';
 install plugin audit_null soname 'adt_null';
 ERROR HY000: Incorrect key file for table './mysql/plugin.MYI'; try to repair it

mysql-test/suite/plugins/t/audit_null_debug.test

@@ -5,19 +5,21 @@ if (!$ADT_NULL_SO) {
   skip No NULL_AUDIT plugin;
 }
 
-call mtr.add_suppression("mysql/plugin.MYI");
+call mtr.add_suppression("Incorrect key file for table.*mysql.plugin.MYI");
 
 #
 # MySQL BUG#14485479 - INSTALL AUDIT PLUGIN HANGS IF WE TRY TO DISABLE AND ENABLED DURING DDL OPERATION
 # (a.k.a. audit event caused by the table access during audit plugin initialization)
 #
 SET debug_dbug='+d,myisam_pretend_crashed_table_on_usage';
+--replace_result \\ /
 --error 126
 install plugin audit_null soname 'adt_null';
 SET debug_dbug='-d,myisam_pretend_crashed_table_on_usage';
 
 install plugin audit_null soname 'adt_null';
 SET debug_dbug='+d,myisam_pretend_crashed_table_on_usage';
+--replace_result \\ /
 --error 126
 uninstall plugin audit_null;
 SET debug_dbug='-d,myisam_pretend_crashed_table_on_usage';