Fixup.

Author: maleadt

src/mapreduce.jl

@@ -201,7 +201,7 @@ NVTX.@range function GPUArrays.mapreducedim!(f, op, R::CuArray{T}, As::AbstractA
         @cuda threads=threads blocks=blocks shmem=shmem partial_mapreduce_grid(
             f, op, init, Rreduce, Rother, reduce_blocks, Val(shuffle), partial, As...)
 
-        GPUArrays.mapreducedim!(identity, op, R′, partial, init)
+        GPUArrays.mapreducedim!(identity, op, R′, partial; init=init)
     end
 
     return R