Fix broken depwarn & whitespace

From #927

Author: timholy

src/labeledarrays.jl

@@ -18,7 +18,7 @@ associated with that point's label.
 This computation is performed lazily, as to be suitable even for large arrays.
 """
 function ColorizedArray(intensity, label::IndirectArray{C,N}) where {C<:Colorant,N}
-    depwarn("`ColorizedArray(intensity, label)` is deprecated, use `mappedarray(*, intensity, label)` from `MappedArrays` instead", :ColorizedArray)
+    Base.depwarn("`ColorizedArray(intensity, label)` is deprecated, use `mappedarray(*, intensity, label)` from `MappedArrays` instead", :ColorizedArray)
 
     axes(intensity) == axes(label) || throw(DimensionMismatch("intensity and label must have the same axes, got $(axes(intensity)) and $(axes(label))"))
     CI = typeof(zero(C)*zero(eltype(intensity)))

test/arrays.jl

@@ -6,10 +6,10 @@ using Images.MappedArrays: mappedarray
     labels = IndirectArray([1 2; 2 1], [RGB(1,0,0), RGB(0,0,1)])
     colorized_A = @suppress_err ColorizedArray(intensity, labels)
     mapped_A = mappedarray(*, intensity, labels)
-    
+
     target = intensity .* labels
 
-    for A in (colorized_A, mapped_A) 
+    for A in (colorized_A, mapped_A)
         @test eltype(A) == RGB{Float64}
         @test size(A) == (2,2)
         @test axes(A) == (Base.OneTo(2), Base.OneTo(2))