Update block_disk.py

in case you specify gcimagebundle -d /dev/sda1
the message is not leading you to specify a disk, it makes you confused about why a single partition
is not a single partition
Fixes an issue that blocked the version displaying
fix(google-daemon): use * for the passwd not !

useradd defaults to using ! as the "locked" password marker.
Unfortunatly, openssh interprets this to mean that it shouldn't let the
user in via ssh if PAM is missing. Work around this by using the *
marker which also means locked but is allowed by openssh.
Merge pull request #57 from HimanshuVasishth/master

Improving error handling and logging
feat(accounts): add users to the sudo group by default

On CoreOS the sudo group gets passwordless sudo. Add users to this
group.
Merge pull request #60 from coreos/add-sudo-group

feat(accounts): add users to the sudo group by default
Merge pull request #55 from coreos/master

fix(google-daemon): use * for the passwd not !
Switch to IP address to access metadata server.
Merge pull request #53 from NitriKx/master

Fixes an issue that blocked the version displaying
Merge remote-tracking branch 'upstream/master'
Incorporate code review feedback.
Merge pull request #61 from yueluog/master

Switch to IP address to access metadata server.
Update block_disk.py
Merge pull request #52 from feczo/patch-2

Update block_disk.py
Bump package versions to 1.1.2.
Merge pull request #62 from herbertd/master

Bump package versions to 1.1.2.
Output SSH public key fingerprints at boot
Update onboot
Update onboot
Update onboot