Git 2.10.4

1. 70d5e2d check_connected: add progress flag by Jeff King · 9 years ago
2. e033184 check_connected: relay errors to alternate descriptor by Jeff King · 9 years ago
3. 7043c70 check_everything_connected: use a struct with named options by Jeff King · 9 years ago
4. 614db3e connected.c: add new variant that runs with --shallow-file by Nguyễn Thái Ngọc Duy · 12 years ago
5. c6807a4 clone: open a shortcut for connectivity check by Nguyễn Thái Ngọc Duy · 13 years ago
6. f96400c check_everything_connected(): libify by Junio C Hamano · 14 years ago