some formatting updates

examples/examples1d.jl

@@ -53,7 +53,7 @@ function runtests()
     @test numbers_match(interval_localref(), 27, 26, 2)
     @test numbers_match(interval_multiregion(), 21, 20, 3)
     @test numbers_match(interval_subgrid(), 51, 50, 2)
-    nothing
+    return nothing
 end
 
 # Plot generation
@@ -67,5 +67,5 @@ function generateplots(picdir; Plotter = nothing)
         Plotter.save(joinpath(picdir, "interval_multiregion.png"), gridplot(interval_multiregion(); Plotter, size, legend))
         Plotter.save(joinpath(picdir, "interval_subgrid.png"), gridplot(interval_subgrid(); Plotter, size, legend))
     end
-    nothing    
+    return nothing
 end

examples/examples2d.jl

@@ -34,7 +34,7 @@ function rectangle_multiregion()
     bfacemask!(grid, [0.0, 0.0], [0.0, 0.5], 5)
     bfacemask!(grid, [1.0, 0.0], [1.0, 0.5], 6)
     bfacemask!(grid, [0.0, 0.5], [1.0, 0.5], 7)
-grid
+    return grid
 end
 # ![](rectangle_multiregion.png)
 
@@ -108,7 +108,7 @@ function runtests()
     @test numbers_match(g, 187, 306, 66)
     @test numbers_match(sg, 17, 16, 0)
     @test issorted(view(sg[Coordinates], 1, :))
-nothing
+    return nothing
 end
 
 # Plot generation
@@ -130,5 +130,5 @@ function generateplots(picdir; Plotter = nothing)
         fname = joinpath(picdir, "sorted_subgrid.png")
         Plotter.save(fname, reveal(p))
     end
-    nothing
+    return nothing
 end

examples/examples3d.jl

@@ -47,16 +47,16 @@ function runtests()
     @test numbers_match(quadrilateral(), 330, 1200, 440)
     @test mask_bedges()
     @test numbers_match(cross3d(), 189, 480, 344)
-nothing
+    return nothing
 end
 
 # Plot generation
 using GridVisualize
 function generateplots(picdir; Plotter = nothing)
-     if isdefined(Plotter, :Makie)
+    if isdefined(Plotter, :Makie)
         size = (400, 400)
         Plotter.save(joinpath(picdir, "quadrilateral.png"), gridplot(quadrilateral(); Plotter, size))
         Plotter.save(joinpath(picdir, "cross3d.png"), gridplot(cross3d(); Plotter, size))
     end
-nothing
+    return nothing
 end

examples/gmsh.jl

@@ -314,7 +314,7 @@ function runtests()
     @test ok(gmsh_t1())
     @test ok(gmsh_t4())
     @test ok(gmsh_t5())
-nothing
+    return nothing
 end
 
 # Plot generation
@@ -326,5 +326,5 @@ function generateplots(picdir; Plotter = nothing)
         Plotter.save(joinpath(picdir, "gmsh_t4.png"), gridplot(gmsh_t4(); Plotter, size))
         Plotter.save(joinpath(picdir, "gmsh_t5.png"), gridplot(gmsh_t5(); Plotter, size))
     end
-nothing
+    return nothing
 end

examples/vtk_write.jl

@@ -16,7 +16,7 @@ function grid3D_test(filename::String)
         cell_data = cell_data,
         field_data = field_data
     )
-nothing
+    return nothing
 
 end
 
@@ -35,7 +35,7 @@ function grid2D_test(filename::String)
         cell_data = cell_data,
         field_data = field_data
     )
-nothing
+    return nothing
 end
 
 function grid1D_test(filename::String)
@@ -53,5 +53,5 @@ function grid1D_test(filename::String)
         cell_data = cell_data,
         field_data = field_data
     )
-nothing
+    return nothing
 end