Add getops options to decide whether to write the lcs+fit, and whether to iterate

Read 11 lines from white.qdp
Read 4 lines from b.qdp
Read 2 lines from uvw1.qdp
Read 5 lines from u.qdp
Read 1 lines from v.qdp
0 breaks: chisq= 7.61052/17, P = 0
1 breaks: chisq= 6.25611/15, P = 0.22997
2 breaks: chisq= 6.29035/13, P = -nan
3 breaks: chisq= 6.25613/11, P = 0.970438
4 breaks: chisq= 1.5726e+171/9, P = 1
The best fit has 0 breaks
