SUZEROPHASE - convert input to zero phase equivalent
suzerophase <stdin >stdout [optional parameters]
Required parameters:
if dt is not set in header, then dt is mandatory
Optional parameters:
t0=1.0 time of peak value t0
verbose=0 =1 for advisory messages
Credits:
c. 2011 Bruce VerWest as part of the SEAM project
Trace header fields accessed: ns, dt, d1