GRN test case fixups
GRN test case fixups

2f6ba9ff4 added 2 new GRNs to the dump file. One of them is also added
manually in test_add_host, so update_grns should add one more.

quattor/aquilon,stdweird/aquilon,stdweird/aquilon,quattor/aquilon,quattor/aquilon,guillaume-philippon/aquilon,stdweird/aquilon,guillaume-philippon/aquilon,guillaume-philippon/aquilon