Synopsis
		sflfftexp0 < data.rsf > image.rsf left=left.rsf right=right.rsf adj=n cmplx=n pad1=1 nz= dz= nt= dt=

Parameters
		bool adj=n [y/n] if n, modeling; if y, migration   bool cmplx=n [y/n] use complex FFT   float dt= time sampling (if modeling)   float dz= time sampling (if migration)   file left= auxiliary input file name   int nt= time samples (if modeling)   int nz= time samples (if migration)   int pad1=1 padding factor on the first axis   file right= auxiliary input file name