Fixed unpacking of return from function calls of return_offset_data, since w_eff is now also returned.
Regarding sr #3124, (https://gna.org/support/index.php?3124) - Grace graphs production for R1rho analysis with R2_eff as function of Omega_eff.
Authored by: tlinnet 2014-03-07
Parent: [r22438]
Child: [r22440]