Bug#25873398 MTR error_log temporary table column line must accept all

possible encodings. We do that by using latin1 which will allow all
possible bytes.

Reviewed by [email protected]

Author: berntm

mysql-test/include/check-warnings.test

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
 #
 # This test is executed once after each test to check the servers
 # for unexpected warnings found in the servers error log
@@ -46,7 +46,7 @@ create temporary table error_log (
   row int auto_increment primary key,
   suspicious int default 1,
   file_name varchar(255),
-  line varchar(1024) default null
+  line varchar(1024) charset latin1 default null
 ) engine=myisam;
 COMMIT;
 
@@ -60,6 +60,7 @@ let $log_warning= $log_error.warnings;
 # an attempt to load the file using LOAD DATA LOCAL is made
 --error 0,1290
 eval load data infile '$log_warning' into table error_log
+  character set latin1
   fields terminated by 'xykls37' escaped by ''
   ignore 1 lines
   (line)
@@ -69,6 +70,7 @@ if ($mysql_errno)
 {
   # Try LOAD DATA LOCAL
   eval load data local infile '$log_warning' into table error_log
+    character set latin1
     fields terminated by 'xykls37' escaped by ''
     ignore 1 lines
     (line)