Program sfnconv | Non-stationary convolution 
[SYNOPSIS]
sfnconv < inp.rsf filt=flt.rsf > out.rsf lag=(ntau+1)/2 adj=n
[PARAMETERS]
bool    | adj | =n |  [y/n] | 	adjoint flag 
file    | filt | = |   | 	auxiliary input file name
int     | lag | =(ntau+1)/2 |   | 	filter lag 
[DIRECTORY]
user/fomels
