Fix nsinker_gmg_gc test

[danieldouglas92]

This test is failing on the tester for other PRs and after looking at #7022 it seems that the issue is just a difference in the number of empty lines? We'll see if the test passes here, not sure what could have caused this discrepancy.

[tjhei]

Something weird is going on, because Jenkins and Github CI do not agree. Somehow other tests are now failing here:

The following tests FAILED:
	402 - gmg_mesh_deform_adaptive_bug (Failed)
	851 - point_value_02_mpi (Failed)

[danieldouglas92]

@tjhei That's really strange. I don't have any experience with trying to modify/change the testers themselves, but is there anything I can do to help fix this?

[tjhei]

I am looking into it