Program sflpad2 | 2D pad and interleave traces.
[SYNOPSIS]
sflpad2 < in.rsf > out.rsf mask=mask.rsf jump=2
[COMMENTS]

Each initial trace is followed by "jump" zero traces.

[PARAMETERS]
int     | jump | =2 |   | 	aliasing 
file    | mask | = |   | 	auxiliary output file name
[DIRECTORY]
user/yliu
