Ported r2884 from the 1.3 line to fix bug #7845 (https://gna.org/bugs/?7845).
The command used was:
svn merge -r2883:2884 svn+ssh://bugman@.../svn/relax/1.3
This bug was reported by Sebastien Morin (https://gna.org/users/semor) and the fix was to increase
the precision of the chi-squared value in the model-free results file.