Slovak collation didn't work: typo fix in the tailoring rules


strings/ctype-uca.c:
  Slovak collation didn't work: typo fix in the tailoring rules
mysql-test/r/ctype_uca.result:
  Slovak collation didn't work: typo fix in the tailoring rules
mysql-test/t/ctype_uca.test:
  Slovak collation didn't work: typo fix in the tailoring rules