aggregator: test cleanup

Remove gst_init() from a few tests. Use _OBJECT variants in logging. Remove
arbitrary extra blank lines. Make push_event() more like push_buffer() - set
the event to NULL and add cleanup to _chain_data_clear().
1 file changed
tree: c73d9ce5bde6dbacce1ee47766c68869f9a94779
  1. libs/
  2. tests/