update tests to ensure period char is NOT escaped in mysql2 as per https://dev.mysql.com/doc/refman/5.7/en/string-comparison-functions.html
update tests to ensure period char is NOT escaped in mysql2 as per
https://dev.mysql.com/doc/refman/5.7/en/string-comparison-functions.html

outstand/ransack,activerecord-hackery/ransack