Coverity: multiple defects in btrack tests
Fix the following CIDs in the bootstrap tracker tests: 1446052, 1446050, 1446049, 1446047. These are inconsequential uninitialized structure members in tests.
Fix the following CIDs in the bootstrap tracker tests: 1446052, 1446050, 1446049, 1446047. These are inconsequential uninitialized structure members in tests.