[against sf/repl_realpath]

[vtjnash]

@staticfloat I think this might be more reliable (closer to what the internal code does)?

[vtjnash]

CI bots seems to be having a problem with the LinearAlgebra/addmul tests. @andreasnoack?

I recently saw a local test fail too (just one out of many), perhaps related:

$ ./julia stdlib/LinearAlgebra/test/addmul.jl

Test Summary:                                                                                                                                                                           | Pass  Total
mul!(::Array{BigFloat,2}, ::LinearAlgebra.LowerTriangular{Float32,S} where S<:AbstractArray{Float32,2}, ::LinearAlgebra.Tridiagonal{Float32,V} where V<:AbstractArray{Float32,1}, α, β) |  216    216
                     |   20            20
  α = true, β = 0.007161887834486659 - 0.021296660983651093im
                     |    2      1      3
  α = 1.0 + 0.0im, β = false
                     |   20            20
  α = 1.0 + 0.0im, β = 0.0 + 0.0im
                     |   20            20
  α = 1.0 + 0.0im, β = -0.6981463317401282 - 1.3416363080961455im
                     |    2      1      3
  α = -1.2157533176718278 + 1.1621553398037494im, β = false
                     |    2      1      3
  α = -1.2157533176718278 + 1.1621553398037494im, β = 0.0 + 0.0im
                     |    2      1      3
  α = -1.2157533176718278 + 1.1621553398037494im, β = -0.6981463317401282 - 1.3416363080961455im
                     |    2      1      3

Test Summary:                                                                                                                                                                                                                                 | Pass  Total
mul!(::LinearAlgebra.LowerTriangular{Float64,S} where S<:AbstractArray{Float64,2}, ::LinearAlgebra.UnitLowerTriangular{Int64,S} where S<:AbstractArray{Int64,2}, ::LinearAlgebra.Diagonal{Float32,V} where Vmul!(::Array{Complex{Float64},2}, ::LinearAlgebra.Tridiagonal{Complex{Float64},V} where V<:AbstractArray{Complex{Float64},1}, ::LinearAlgebra.Hermitian{Float64,S} where S<:(AbstractArray{#s630,2} where #s630<:Float64), α, β) |   90      5     95
  α = true, β = false
                     |   20            20
  α = true, β = 0.0 + 0.0im