old_contents: """\
  Core FFT routines
  ==================
  
   Standard FFTs
  
     fft
     ifft
     fft2
     ifft2
     fftn
     ifftn
  
   Real FFTs
  
     refft
     irefft
     refft2
     irefft2
     refftn
     irefftn
  
   Hermite FFTs
  
     hfft
     ihfft
  """
  
  depends = ['core']
  
new_contents: """\
  Core FFT routines
  ==================
  
   Standard FFTs
  
     fft
     ifft
     fft2
     ifft2
     fftn
     ifftn
  
   Real FFTs
  
     rfft
     irfft
     rfft2
     irfft2
     rfftn
     irfftn
  
   Hermite FFTs
  
     hfft
     ihfft
  """
  
  depends = ['core']
  
subject: Fix documentation of fft sub-package to eliminate references to refft.