fix broken et_EE locale

fix broken et_EE locale

http://lists.pld-linux.org/mailman/pipermail/pld-devel-en/2018-February/025504.html

$ localedb-gen --locales et_EE.UTF-8/UTF-8 -d .
Generating et_EE.UTF-8 using charset UTF-8... failed to set locale!
[error] LC_COLLATE: missing `reorder-end' keyword
failed to set locale!
[error] no output file produced because errors were issued

source commit:
https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=de9661d6beb74b177cef07fe44c90c4e48a983a2

related bugreport:
https://sourceware.org/bugzilla/show_bug.cgi?id=22517