Explicitly set newline separator when writing seqs in convergence()
Explicitly set newline separator when writing seqs in convergence()

catterbu/receptormarker,nsh87/receptormarker,nsh87/receptormarker,catterbu/receptormarker,catterbu/receptormarker,nsh87/receptormarker,catterbu/receptormarker,nsh87/receptormarker,nsh87/receptormarker,catterbu/receptormarker