Program sffern | Generate fractal fern. 
[SYNOPSIS]
sffern > out.rsf n=1000 seed=time(NULL) angle=y
[PARAMETERS]
bool    | angle | =y |  [y/n] | 	if y, use more angular fern 
int     | n | =1000 |   | 	number of points 
int     | seed | =time(NULL) |   | 	random seed 
[DIRECTORY]
system/generic
