fft test broken

[JeffBezanson]

     * fft
ERROR: assertion failed: |:(rfftn_m4[i,j]) - :(true_fftn_m4[i,j])| < 2.3364326363345896e-10
  :(rfftn_m4[i,j]) = -13.0 + 2.0im
  :(true_fftn_m4[i,j]) = 0.0 + 0.0im
 in test_approx_eq at test.jl:54
 in anonymous at no file:159
 in include_from_node1 at loading.jl:76
 in runtests at /home/jeff/src/julia2/julia/test/runtests.jl:6
 in anonymous at no file:22
 in include_from_node1 at loading.jl:76
 in process_options at client.jl:255
 in _start at client.jl:318
at /home/jeff/src/julia2/julia/test/fft.jl:167

This also happens on travis.
@stevengj

[StefanKarpinski]

We are doing a very shitty job of not breaking things right now. This has to stop. This was partly my fault for not testing that pull request before merging it. I assumed that it would at least pass the fft tests :-\

[stevengj]

Sorry, stupid error on my part.

[StefanKarpinski]

I actually already did something like that: bed9511. Hopefully that's good enough; if there's a better fix, please do submit, however.