2767-Debre-IGH.should-vdj.fa: IGHJ4*01 or IGHJ4*02 are good solutions

IGHJ4*02 is actually slightly better than IGHJ4*01, because one insertion and
one deletion (with IGHJ4*01) are replaced with two substitutions (IGHJ4*02)
6 jobs for feature-a/2767-error-segmentation-sequence-IGHV4-59 in 25 minutes and 55 seconds (queued for 2 seconds)