Merge branch 'mh/fetch-filter-refs'

Code simplification and clarification. * mh/fetch-filter-refs: test-string-list.c: Fix some sparse warnings fetch-pack: eliminate spurious error messages cmd_fetch_pack(): simplify computation of return value fetch-pack: report missing refs even if no existing refs were received cmd_fetch_pack(): return early if finish_connect() fails filter_refs(): simplify logic filter_refs(): build refs list as we go filter_refs(): delete matched refs from sought list fetch_pack(): update sought->nr to reflect number of unique entries filter_refs(): do not check the same sought_pos twice Change fetch_pack() and friends to take string_list arguments fetch_pack(): reindent function decl and defn Rename static function fetch_pack() to http_fetch_pack() t5500: add tests of fetch-pack --all --depth=N $URL $REF t5500: add tests of error output for missing refs