tests: sys_vars.sysvars_wsrep

Rather than bumping the version again,
* d036cc9b, and again
* 5a4ec8e6, and again
* 7f19330c;

Just accept version numbers change. Also accept that people may want
to test this against more than one version.

mysql-test/suite/sys_vars/r/sysvars_wsrep.result

@@ -367,7 +367,7 @@ READ_ONLY	NO
 COMMAND_LINE_ARGUMENT	OPTIONAL
 VARIABLE_NAME	WSREP_PATCH_VERSION
 SESSION_VALUE	NULL
-GLOBAL_VALUE	wsrep_25.19
+GLOBAL_VALUE	wsrep_MAJVER.MINVER
 GLOBAL_VALUE_ORIGIN	COMPILE-TIME
 DEFAULT_VALUE	NULL
 VARIABLE_SCOPE	GLOBAL

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

@@ -5,7 +5,7 @@
 
 --replace_result $datadir DATADIR
 --let $hostname_regex=/^$hostname\$/HOSTNAME/
---replace_regex $hostname_regex
+--replace_regex $hostname_regex /wsrep_[0-9]{2}\.[0-9]{1,2}/wsrep_MAJVER.MINVER/
 --vertical_results
 select * from information_schema.system_variables
   where variable_name like 'wsrep%'