[PATCH v2] nl_NL locale: Correct the negative monetary format (bug 24614).

[Florian Weimer]

* Rafal Luzynski:

> 	[BZ #24614]
> 	* localedata/Makefile (LOCALES): Add nl_NL.UTF-8.
> 	* localedata/locales/nl_NL (n_sep_by_space): Set to 2 (a space
> 	between the currency symbol and the minus sign).
> 	(n_sign_posn): Set to 4 (the minus sign after the currency symbol).
> 	* localedata/tst-strfmon1.c (tests): Add test data for nl_NL.UTF-8.

I do not have an opinion on the change itself, but the implementation
looks fine to me.

Thanks,
Florian