Non-ASCII characters are not recognized by print_explicit_imports

[JoshuaLampert]

Let's say we have the following module in a file Foo.jl:

module Foo
using LinearAlgebra
bar(a, b) = a ⋅ b
end

where ⋅ is exported from LinearAlgebra.jl. Running print_explicit_imports(Foo, "Foo.jl") gives

julia> print_explicit_imports(Foo, "Foo.jl")
  Module Main.Foo is relying on implicit imports for 1 name. This could be explicitly imported as follows:

  using LinearAlgebra: LinearAlgebra

However, exchanging using LinearAlgebra by the suggested using LinearAlgebra: LinearAlgebra breaks the module of course since ⋅ is not available anymore. I would expect ExplicitImports.jl to suggest using LinearAlgebra: LinearAlgebra, ⋅. I have tested that the same happens with ×. So I assume this happens for non-ASCII characters.