client: main: fix usage before initialization of rz_core in case of debug=1
client: main: fix usage before initialization of rz_core in case of debug=1

Rhizi/rhizi,cben/rhizi,shlomif/rhizi,Rhizi/rhizi,cben/rhizi,ozFri/rhizi,yuvadm/rhizi,cben/rhizi,tlevine/rhizi,ozFri/rhizi,tlevine/rhizi,shlomif/rhizi,yuvadm/rhizi,Rhizi/rhizi,tlevine/rhizi,shlomif/rhizi,yuvadm/rhizi,Rhizi/rhizi,yuvadm/rhizi,tlevine/rhizi,shlomif/rhizi,ozFri/rhizi,ozFri/rhizi,cben/rhizi