tree 2c98825daced9c0ab44f7be11048c438094684eb
parent 2a1ccb2b0ca6a975614b96271fccd82a58394157
author Shawn O. Pearce <sop@google.com> 1239406160 -0700
committer Shawn O. Pearce <sop@google.com> 1239408472 -0700

Add 'repo sync -n' to only do the network transfer

This makes it easier to update all repositories, without actually
impacting the working directory, or learning about how to use
`repo forall -c 'git fetch $REPO_REMOTE' `.

Signed-off-by: Shawn O. Pearce <sop@google.com>