#4621 fix typo in mysql test README refs[t:4621]

git-svn-id: file:///svn/mysql/tests/mysql-test@41306 c7de825b-a66e-492c-adef-691d508d4ae1

mysql-test/README.tokudb

-The MySQL tests for TokuDB consists of two sets of tests.  
+The MySQL tests for TokuDB are divided into common tests and tests specific to a
+particular MySQL distribution.
 
 The tests that are common for all MySQL distributions can be found in the
 svn:tokudb/mysql/tests/mysql-test directory.