The realign test fail due to libwfa2 library issue

Running integration tests for libwfa2 via `./tests/wfa.utest.sh` produces the following results on amd64 platform:

-----------------------
> Comparing ./tests vs ./tests/wfa.utest.check
[UTest::test.affine2p]   	OK
[UTest::test.affine]   	OK
[UTest::test.affine.p0]   	OK
[UTest::test.affine.p1]   	OK
[UTest::test.affine.p2]   	OK
[UTest::test.affine.p3]   	OK
[UTest::test.affine.p4]   	OK
[UTest::test.affine.p5]   	OK
[UTest::test.affine.wfapt0]	OK
[UTest::test.affine.wfapt1]	OK
[UTest::test.biwfa.affine2p]	OK
[UTest::test.biwfa.affine]	OK
[UTest::test.biwfa.affine.p0]	OK
[UTest::test.biwfa.affine.p1]	OK
[UTest::test.biwfa.affine.p2]	OK
[UTest::test.biwfa.affine.p3]	OK
[UTest::test.biwfa.affine.p4]	OK
[UTest::test.biwfa.affine.p5]	OK
[UTest::test.biwfa.affine.wfapt0]	OK
[UTest::test.biwfa.affine.wfapt1]	OK
[UTest::test.biwfa.edit]	OK
[UTest::test.biwfa.indel]	OK
[UTest::test.biwfa.score.affine2p]	OK
[UTest::test.biwfa.score.affine]	OK
[UTest::test.biwfa.score.affine.p0]	OK
[UTest::test.biwfa.score.affine.p1]	OK
[UTest::test.biwfa.score.affine.p2]	OK
[UTest::test.biwfa.score.affine.p3]	OK
[UTest::test.biwfa.score.affine.p4]	OK
[UTest::test.biwfa.score.affine.p5]	OK
[UTest::test.biwfa.score.affine.wfapt0]	OK
[UTest::test.biwfa.score.affine.wfapt1]	OK
[UTest::test.biwfa.score.edit]	OK
[UTest::test.biwfa.score.indel]	OK
[UTest::test.edit]	OK
[UTest::test.indel]   	OK
[UTest::test.pb.affine2p]	OK
[UTest::test.pb.affine]   	OK
[UTest::test.pb.affine.p0]	OK
[UTest::test.pb.affine.p1]	OK
[UTest::test.pb.affine.p2]	OK
[UTest::test.pb.affine.p3]	OK
[UTest::test.pb.affine.p4]	OK
[UTest::test.pb.affine.p5]	OK
[UTest::test.pb.affine.wfapt0]	OK
[UTest::test.pb.affine.wfapt1]	OK
[UTest::test.pb.edit]   	OK
[UTest::test.pb.indel]   	OK
[UTest::test.score.affine2p]	OK
[UTest::test.score.affine]	OK
[UTest::test.score.affine.p0]	OK
[UTest::test.score.affine.p1]	OK
[UTest::test.score.affine.p2]	OK
[UTest::test.score.affine.p3]	OK
[UTest::test.score.affine.p4]	OK
[UTest::test.score.affine.p5]	OK
[UTest::test.score.affine.wfapt0]	OK
[UTest::test.score.affine.wfapt1]	OK
[UTest::test.score.edit]	OK
[UTest::test.score.indel]	OK
+ grep 'Exit status:' ./tests/wfa.utest.log

------------------------------

S390x tests:
--------------------------------
> Comparing ./tests vs ./tests/wfa.utest.check
[UTest::test.affine]   	Error
[UTest::test.affine.p0]   	Error
[UTest::test.affine.p1]   	Error
[UTest::test.affine.p2]   	Error
[UTest::test.affine.p3]   	Error
[UTest::test.affine.p4]   	Error
[UTest::test.affine.p5]   	Error
[UTest::test.affine.wfapt0]	Error
[UTest::test.affine.wfapt1]	Error
[UTest::test.affine2p]   	Error
[UTest::test.biwfa.affine]	Error
[UTest::test.biwfa.affine.p0]	Error
[UTest::test.biwfa.affine.p1]	Error
[UTest::test.biwfa.affine.p2]	Error
[UTest::test.biwfa.affine.p3]	Error
[UTest::test.biwfa.affine.p4]	Error
[UTest::test.biwfa.affine.p5]	Error
[UTest::test.biwfa.affine.wfapt0]	Error
[UTest::test.biwfa.affine.wfapt1]	Error
[UTest::test.biwfa.affine2p]	Error
[UTest::test.biwfa.edit]	Error
[UTest::test.biwfa.indel]	Error
[UTest::test.biwfa.score.affine]	Error
[UTest::test.biwfa.score.affine.p0]	Error
[UTest::test.biwfa.score.affine.p1]	Error
[UTest::test.biwfa.score.affine.p2]	Error
[UTest::test.biwfa.score.affine.p3]	Error
[UTest::test.biwfa.score.affine.p4]	Error
[UTest::test.biwfa.score.affine.p5]	Error
[UTest::test.biwfa.score.affine.wfapt0]	Error
[UTest::test.biwfa.score.affine.wfapt1]	Error
[UTest::test.biwfa.score.affine2p]	Error
[UTest::test.biwfa.score.edit]	Error
[UTest::test.biwfa.score.indel]	Error
[UTest::test.edit]	Error
[UTest::test.indel]   	Error
[UTest::test.pb.affine]   	Error
[UTest::test.pb.affine.p0]	Error
[UTest::test.pb.affine.p1]	Error
[UTest::test.pb.affine.p2]	Error
[UTest::test.pb.affine.p3]	Error
[UTest::test.pb.affine.p4]	Error
[UTest::test.pb.affine.p5]	Error
[UTest::test.pb.affine.wfapt0]	Error
[UTest::test.pb.affine.wfapt1]	Error
[UTest::test.pb.affine2p]	Error
[UTest::test.pb.edit]   	Error
[UTest::test.pb.indel]   	Error
[UTest::test.score.affine]	Error
[UTest::test.score.affine.p0]	Error
[UTest::test.score.affine.p1]	Error
[UTest::test.score.affine.p2]	Error
[UTest::test.score.affine.p3]	Error
[UTest::test.score.affine.p4]	Error
[UTest::test.score.affine.p5]	Error
[UTest::test.score.affine.wfapt0]	Error
[UTest::test.score.affine.wfapt1]	Error
[UTest::test.score.affine2p]	Error
[UTest::test.score.edit]	Error
[UTest::test.score.indel]	Error

--------------------------------