Merge branch 'sz/submodule-force-update' into maint-1.7.11

* sz/submodule-force-update: Make 'git submodule update --force' always check out submodules.

Junio C Hamano committed Sep 11, 2012 at 11:10 UTC ee7a83f6314a6fe281c8e3e041cfd42b5a2deb44

No changes.