Git 2.20.4

1. ca5e396 fixup! connect.h: avoid forward declaration of an enum by Junio C Hamano · 7 years ago
2. 2e75c8e connect.h: avoid forward declaration of an enum by Beat Bolli · 7 years ago
3. f7e2050 fetch-pack: support shallow requests by Brandon Williams · 8 years ago
4. e52449b connect: request remote refs using v2 by Brandon Williams · 8 years ago
5. ad6ac12 connect: discover protocol version outside of get_remote_heads by Brandon Williams · 8 years ago
6. c915f11 connect & http: support -4 and -6 switches for remote operations by Eric Wong · 10 years ago
7. c59ab2e connect.c: refactor url parsing by Torsten Bögershausen · 12 years ago
8. 5610b7c git fetch-pack: add --diag-url by Torsten Bögershausen · 12 years ago
9. 9907d13 Merge branch 'jc/upload-pack-send-symref' by Junio C Hamano · 12 years ago
10. 47a5918 cache.h: move remote/connect API out of it by Junio C Hamano · 12 years ago