Bug#1078614: Downgrading severity of "extrepo-data: will FTBFS during trixie support period"

[Thomas Goirand]

As per Stefano's comment, I'm lowering severity of this bug.
Stefano, I believe you wrote more to me on IRC, but forgot what it was. 
Please write here if you remember your suggestion.

Cheers,

Thomas Goirand (zigo)