I have been trying to run a regression test against msvc-12 on Windows 8.1
and I am getting the following errors.  In the past, this has run fine.

I run this command from my cmd prompt:
python run.py --runner=Matusi143 --toolsets=msvc-12.0 -tag=master

Everything appears to go fine until...

# Executing GIT command: c:\boost_dev\boost_root> git submodule foreach
""git reset --quiet --hard; git clean -fxd""
Entering 'libs/accumulators'
error: unknown option `hard;'