I couldnt find a way to change it.. so I made this patch
https://github.com/django/django/pull/9879
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Ticket URL: <https://code.djangoproject.com/ticket/29352>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
* component: Uncategorized => contrib.syndication
* needs_tests: 0 => 1
* needs_docs: 0 => 1
* type: Uncategorized => Cleanup/optimization
* stage: Unreviewed => Accepted
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Ticket URL: <https://code.djangoproject.com/ticket/29352#comment:1>
* cc: Herbert Fortes (added)
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Ticket URL: <https://code.djangoproject.com/ticket/29352#comment:2>
* needs_docs: 1 => 0
* needs_tests: 1 => 0
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Ticket URL: <https://code.djangoproject.com/ticket/29352#comment:3>
* version: 1.11 => master
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Ticket URL: <https://code.djangoproject.com/ticket/29352#comment:4>
* owner: nobody => Tobias Kunze
* status: new => assigned
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Ticket URL: <https://code.djangoproject.com/ticket/29352#comment:5>
* status: assigned => closed
* resolution: => fixed
Comment:
In [changeset:"3166880301047a0d3ce111118123255766409ad0" 3166880]:
{{{
#!CommitTicketReference repository=""
revision="3166880301047a0d3ce111118123255766409ad0"
Fixed #29352 -- Allowed specifying a Feed language.
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/29352#comment:6>