Format ABM subdirectory

Run the reformatting command
suggested in CONTRIBUTING.md,
but keeping only the changes on the ABM directory
(which my current PR is affecting)

Author: Michele Mesiti

lib/OrdinaryDiffEqAdamsBashforthMoulton/src/adams_bashforth_moulton_perform_step.jl

@@ -303,7 +303,7 @@ end
         t4 .= k4
         perform_step!(integrator,
             AB4Cache(u, uprev, fsalfirst, t2, t3, t4, ralk2, k, tmp, t5, t6, t7,
-                cnt,thread))
+                cnt, thread))
         k = integrator.fsallast
         @.. broadcast=false thread=thread u=uprev +
                                             (dt / 24) * (9 * k + 19 * k1 - 5 * k2 + k3)

lib/OrdinaryDiffEqAdamsBashforthMoulton/test/regression_test_threading.jl

@@ -2,26 +2,24 @@ using OrdinaryDiffEqAdamsBashforthMoulton, ODEProblemLibrary
 using Test
 using Static
 
-free_timestep_algorithms = [ VCAB3, VCAB4, VCAB5, VCABM3, VCABM4, VCABM5, VCABM]
+free_timestep_algorithms = [VCAB3, VCAB4, VCAB5, VCABM3, VCABM4, VCABM5, VCABM]
 
-fixed_timestep_algorithms = [AB3,AB4, AB5, ABM32, ABM43, ABM54]
+fixed_timestep_algorithms = [AB3, AB4, AB5, ABM32, ABM43, ABM54]
 
 problem = ODEProblemLibrary.prob_ode_linear
 
 function test_alg(ALG; kwargs...)
-   sol_thread = solve(problem, ALG(Static.True()); kwargs...)
-   sol_nothread = solve(problem, ALG(Static.False()); kwargs...)
+    sol_thread = solve(problem, ALG(Static.True()); kwargs...)
+    sol_nothread = solve(problem, ALG(Static.False()); kwargs...)
 
-   @test all(sol_nothread .== sol_thread)
+    @test all(sol_nothread .== sol_thread)
 end
 
-
 @testset "Regression test for threading versions vs non threading versions" begin
     @testset "$ALG" for ALG in fixed_timestep_algorithms
-        test_alg(ALG, dt=1//2^9)
+        test_alg(ALG, dt = 1 // 2^9)
     end
     @testset "$ALG" for ALG in free_timestep_algorithms
         test_alg(ALG)
     end
-
 end

lib/OrdinaryDiffEqAdamsBashforthMoulton/test/runtests.jl

@@ -2,4 +2,4 @@ using SafeTestsets
 
 @time @safetestset "ABM Convergence Tests" include("abm_convergence_tests.jl")
 @time @safetestset "Adams Variable Coefficients Tests" include("adams_tests.jl")
-@time @safetestset "Regression test for threading versions vs non threading versions"  include("regression_test_threading.jl")
+@time @safetestset "Regression test for threading versions vs non threading versions" include("regression_test_threading.jl")