```---------:frontmatter
sys_vars.all_vars fails on Windows 32 and 64 bit on daily trunk commercial
branch with multiple combinations.

Failure snippet-
sys_vars.all_vars                        w1 [ fail ]
        Test ended at 2012-08-22 09:20:13

CURRENT_TEST: sys_vars.all_vars
'diff' is not recognized as an internal or external command,
operable program or batch file.
```
G:/pb2/test/sb_1-6672625-1345599364.71/mysql-advanced-5.7.0-m10-winx64/mysql-t
est/suite/sys_vars/r/all_vars.result	2012-08-22 01:05:07.000000000 +0300
+++
G:\pb2\test\sb_1-6672625-1345599364.71\mysql-advanced-5.7.0-m10-winx64\mysql-t
est\suite\sys_vars\r\all_vars.reject	2012-08-22 10:20:13.251978100 +0300
@@ -12,5 +12,7 @@
 select variable_name as `There should be *no* variables listed below:` from
t2
 left join t1 on variable_name=test_name where test_name is null ORDER BY
variable_name;
 There should be *no* variables listed below:
+LOG_THROTTLE_QUERIES_NOT_USING_INDEXES
+LOG_THROTTLE_QUERIES_NOT_USING_INDEXES
 drop table t1;
 drop table t2;

mysqltest: Result length mismatch

How to repeat:
--------------
Seen on daily trunk commercial.

mysql-test-run.pl  --timer --force --parallel=8 --comment=n_mix_4k_size
--vardir=var-n_mix --mysqld=--binlog-format=mixed
--experimental=collections/default.experimental --skip-ndb
--skip-test-list=collections/disabled-per-push.list
--mysqld=--innodb-page-size=4k --skip-test=innodb_ignore_builtin

Suggested fix:
--------------
The purpose of all_vars.test is to make sure that there are tests for all 
system variables. In daily trunk commercial it is failing because it could find 
test for a system variable called log_throttle_queries_not_using_indexes.

In windows platform the test-name is truncated to 
log_throttle_queries_not_using_indexes_basic.tes 
Hence all_vars.test couldn't find a .test file for the above variable.

Inorder to get rid of the truncation, suggested fix is to change the name of the 
test to a smaller name which is log_throttle_qni_basic.test

Also changing the file-name must happen in conjunction with another alias-rewrite:

update t2 set variable_name= replace(variable_name, "_THROTTLE_QUERIES_NOT_USING_INDEXES", 
                                     "_THROTTLE_QNI");