git: update to v2.10.2 again

The submodule was accidentally downgraded in commit 8e9ddd21 (Bump
version, 2016-11-23).  Restore v2.10.2 so it matches the makefile again.

Signed-off-by: John Keeping <john@keeping.me.uk>
Tá an tiomantas seo le fáil i:
John Keeping
2016-11-24 18:59:42 +00:00
tuismitheoir 8e9ddd21a5
tiomantas 5ccd965258

2
git

Nuashonraíodh fomhodúl git: 6406bdc0b9...ac84098b7e