typefind: use new gst_type_find_suggest_empty_simple()
gst_type_find_suggest_simple() now requires a NULL terminator (gstreamer#669 (closed)). Use the new, simpler API for no-parameter calls.
Note: This fails
indent(1) checks on my machine, for completely unrelated lines. Do you want a separate commit just changing the style, or is it OK as is? The errors are:
- lines 1028-1029:
flac_type_find(): the indentation of the "disabled because..." comment
- lines 4739-4758:
ogganx_type_find(): the indentation of the