format and don't define init unless required (get it?)

Author: ChrisRackauckas

ext/DiffEqBaseReverseDiffExt.jl

@@ -143,4 +143,4 @@ ReverseDiff.@grad function solve_up(prob, sensealg, u0, p, args...; kwargs...)
     Array(out[1]), actual_adjoint
 end
 
-end
+end

ext/DiffEqBaseTrackerExt.jl

@@ -92,4 +92,4 @@ Tracker.@grad function DiffEqBase.solve_up(prob,
                               SciMLBase.TrackerOriginator(), args...; kwargs...)
 end
 
-end
+end

ext/DiffEqBaseZygoteExt.jl

@@ -51,4 +51,4 @@ ZygoteRules.@adjoint function SciMLBase.responsible_map(f,
     ∇responsible_map(__context__, f, args...)
 end
 
-end
+end

src/init.jl

@@ -14,8 +14,8 @@ function SciMLBase.tmap(args...)
     error("Zygote must be added to differentiate Zygote? If you see this error, report it.")
 end
 
-function __init__()
-    @static if !isdefined(Base, :get_extension)
+@static if !isdefined(Base, :get_extension)
+    function __init__()
         @require Measurements="eff96d63-e80a-5855-80a2-b1b0885c5ab7" begin include("../ext/DiffEqBaseMeasurementsExt.jl") end
 
         @require MonteCarloMeasurements="0987c9cc-fe09-11e8-30f0-b96dd679fdca" begin include("../ext/DiffEqBaseMonteCarloMeasurementsExt.jl") end
@@ -29,7 +29,7 @@ function __init__()
         @require ReverseDiff="37e2e3b7-166d-5795-8a7a-e32c996b4267" begin include("../ext/DiffEqBaseReverseDiffExt.jl") end
 
         @require Zygote="e88e6eb3-aa80-5325-afca-941959d7151f" begin include("../ext/DiffEqBaseZygoteExt.jl") end
-        
+
         @require MPI="da04e1cc-30fd-572f-bb4f-1f8673147195" begin include("../ext/DiffEqBaseMPIExt.jl") end
     end
 end

test/downstream/solve_error_handling.jl

@@ -44,7 +44,7 @@ for u0 in ([0.0, 0.0], nothing)
 end
 
 # Allow empty mass matrix for empty u0
-fmm = ODEFunction((du, u, t)->nothing, mass_matrix = zeros(0, 0))
-prob = ODEProblem(fmm, nothing, (0., 1.))
+fmm = ODEFunction((du, u, t) -> nothing, mass_matrix = zeros(0, 0))
+prob = ODEProblem(fmm, nothing, (0.0, 1.0))
 sol = solve(prob, Tsit5())
 @test isa(sol, DiffEqBase.ODESolution)