Bug#986519: nheko: FTBFS: internal compiler error

[Gianfranco Costamagna]

control: reassign -1 gcc-10
control: found -1 10.2.1-6
control: affects -1 src:nheko
control: fixed -1 10.2.1-24

This is fixed in experimental since long time, not sure which release between 
-16 and -24 fixed it.

G.