cgit

commit 5ccd96525835b314c8615738d533d9d0b54a630c

Author: John Keeping <john@keeping.me.uk>

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>