Synopsis
		sfplanereg2 < in.rsf > out.rsf dip=dip.rsf interp=2 niter=100 order=1 drift=n verb=n eps=0.01 head=

Parameters
		file dip= auxiliary input file name   bool drift=n [y/n] if shift filter   float eps=0.01 regularization parameter   string head=   int interp=2 interpolation length   int niter=100 number of iterations   int order=1 [1,2,3] accuracy order   bool verb=n [y/n] verbosity flag