bug - idn: could not convert from ASCII to UTF-8

[Bogdan]

# I have a bug:

$ echo "домен.рф" | idn
idn: could not convert from ASCII to UTF-8

# My env are:

$ locale
LANG=ru_UA.UTF-8
LC_CTYPE="ru_UA.UTF-8"
LC_NUMERIC="ru_UA.UTF-8"
LC_TIME="ru_UA.UTF-8"
LC_COLLATE="ru_UA.UTF-8"
LC_MONETARY="ru_UA.UTF-8"
LC_MESSAGES="ru_UA.UTF-8"
LC_PAPER="ru_UA.UTF-8"
LC_NAME="ru_UA.UTF-8"
LC_ADDRESS="ru_UA.UTF-8"
LC_TELEPHONE="ru_UA.UTF-8"
LC_MEASUREMENT="ru_UA.UTF-8"
LC_IDENTIFICATION="ru_UA.UTF-8"
LC_ALL=ru_UA.UTF-8

$ locale -a
C
C.utf8
en_US
en_US.iso88591
en_US.iso88595
en_US.utf8
POSIX
ru_RU
ru_RU.cp1251
ru_RU.koi8r
ru_RU.utf8
ru_UA
ru_UA.cp1251
ru_UA.koi8r
ru_UA.utf8
uk_UA
uk_UA.cp1251
uk_UA.koi8r
uk_UA.utf8

# My configs are:

## cat /etc/locale.gen
$ cat /etc/locale.gen | grep -v -e "^#" -e "^$" | sort
C          UTF-8
en_US.ISO-8859-1        ISO-8859-1
en_US.ISO-8859-5        ISO-8859-5
en_US                   UTF-8
en_US.UTF-8             UTF-8
ru_RU.CP1251 CP1251
ru_RU.KOI8-R KOI8-R
ru_RU        UTF-8
ru_RU.UTF-8  UTF-8
ru_UA.CP1251 CP1251
ru_UA.KOI8-R KOI8-R
ru_UA        UTF-8
ru_UA.UTF-8  UTF-8
uk_UA.CP1251 CP1251
uk_UA.KOI8-R KOI8-R
uk_UA        UTF-8
uk_UA.UTF-8  UTF-8

## /etc/conf.d/consolefont
$ cat /etc/conf.d/consolefont | grep -v -e "^#" -e "^$" | sort
CONSOLEFONT="UniCyr_8x16"
CONSOLETRANSLATION="cp1251_to_uni"
UNICODEMAP=""

## cat /etc/conf.d/keymaps
$ cat /etc/conf.d/keymaps | grep -v -e "^#" -e "^$" | sort
DUMPKEYS_CHARSET="cp1251"
EXTENDED_KEYMAPS=""
FIX_EURO="NO"
KEYMAP=" -u ruwin_alt_sh-UTF-8 "
SET_WINDOWKEYS="yes"
WINDOWKEYS="YES"