Fix for the action_relax_disp_cpmg_frq() method of the spectrum list GUI element.
The relax_disp.cpmg_frq user function was being incorrectly called. This was identified via the Relax_disp.test_hansen_trunc_data system test.
Authored by: bugman 2013-09-06
Parent: [r20868]
Child: [r20870]
