Merge branch 'jk/zlib-inflate-fixes'

Fix our use of zlib corner cases. * jk/zlib-inflate-fixes: unpack_loose_rest(): rewrite return handling for clarity unpack_loose_rest(): simplify error handling unpack_loose_rest(): never clean up zstream unpack_loose_rest(): avoid numeric comparison of zlib status unpack_loose_header(): avoid numeric comparison of zlib status git_inflate(): skip zlib_post_call() sanity check on Z_NEED_DICT unpack_loose_header(): fix infinite loop on broken zlib input unpack_loose_header(): report headers without NUL as "bad" unpack_loose_header(): simplify next_out assignment loose_object_info(): BUG() on inflating content with unknown type