[BZ #22336]
            * localedata/locales/cs_CZ (LC_COLLATE): Use “copy "iso14651_t1"”
            and implement the collation rules for cs from CLDR on top of that.
            * Makefile: Add cs_CZ.UTF-8 to test-input and to the list
            of locales to be built for testing.
            * cs_CZ.UTF-8.in: New file with test data to test the Czech sorting.

Difference in sorting of the added test file (added in the patch)
before and after applying the sorting changes of the patch:

[... deleted because this may have caused my mail to be caught by
     the spam filter because of the non-ASCII characters ...]

See

https://sourceware.org/bugzilla/show_bug.cgi?id=22336#c1

for the difference in sorting.

-- 
Mike FABIAN <mfabian@redhat.com>