Fixed compilation of test_filter_flags.c, which was broken by 1dcecfb09b55157b8653d747963069c8bed74f04.
Fixed compilation of test_filter_flags.c, which was broken by
1dcecfb09b55157b8653d747963069c8bed74f04.

pombreda/go-liblzma,pombreda/go-liblzma,pombreda/go-liblzma