adding intl/locale.alias entry

[Ulrich Drepper]

GOTO Masanori <gotom@debian.or.jp> writes:

> We Japanese had been used locale name as 'ja_JP.ujis',
> but in now we are moving to use 'ja_JP.eucJP' instead of
> ja_JP.ujis. This patch adds an alias entry data to maintain
> for back compatibility.

Is it a good idea to add this?  I've been told before that ja_JP.ujis
never really was used.

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