Test: Fix indenting on verbose no-failure report

[IanButterworth]

Fixes the indenting in verbose @testset printing when no failures/errors occur

Master

julia> @testset "Foo" verbose = true begin
           @testset "Barbarbarbarbar" begin
               @test true
           end
           @testset "Baz" begin
               @test true
           end
       end
Test Summary: | Pass  Total
Foo           |    2      2
  Barbarbarbarbar |    1      1
  Baz         |    1      1

This PR

julia> @testset "Foo" verbose = true begin
           @testset "Barbarbarbarbar" begin
               @test true
           end
           @testset "Baz" begin
               @test true
           end
       end
Test Summary:     | Pass  Total
Foo               |    2      2
  Barbarbarbarbar |    1      1
  Baz             |    1      1