Incorrect local language name for slovak language

[azurit]

Local name returned by template tag get_language_info is grammatically incorrect for slovak language: slovenský (translated it means 'slovakian'). The word should be correct if used like this: 'slovenský jazyk' (translated it means 'slovak language'). Without word 'jazyk' (language) it doesn't make much sense. If you need to write it by one word only, it should be one of these:
slovensky
slovenčina

I personally would prefer 'slovenčina' but according to the forms used by other languages, is should be 'slovensky'. Also, most of the languages are using capitalised names, so the best should be 'Slovensky'.

[Claude Paroz]

I've requested by mail the opinion of the current Slovak coordinator on Transifex (Marian Andre).

[Claude Paroz]

Received by Marian in a private mail:

From the ‘consistency’ point of view with other languages he is correct - the correct form is ‘slovensky’.

[Anderson Resende]

​https://github.com/django/django/pull/5780

[Claude Paroz <claude@…>]

In b0ad5081:

Fixed #25717 -- Corrected Slovak local name

[Claude Paroz <claude@…>]

In c12ddbd:

Fixed #25717 -- Corrected Slovak local name

Backport of b0ad5081d5 from master.