2 mistakes in cffdrs python code

[SDupire]

Hello,

I noticed 2 mistakes in the fwi.py scripts :

1. In DMC function :

line 164 :
temp = -1.1 if (temp < 1.1) else temp

should be :
temp = -1.1 if (temp < -1.1) else temp

2. In DC function :
   line 257
   temp = -2.8 if (temp < 2.8) else temp

should be:
temp = -2.8 if (temp < -2.8) else temp

With regards