Include user in scp commands to copy commit hook and cherry-pick script

The Gerrit documentation provides an scp command to install a commit
hook that automatically generates Change-IDs and an scp command to
copy the gerrit-cherry-pick script. To successfully execute the
commands the user has to be specified, otherwise the commands fail
with 'Prohibited by Gerrit'. This change adds a user to the example
scp commands in the Gerrit documentation so that it's clear that a
user has to be specified.

Change-Id: I31dfc7e738b1d126b54839bb741c06112bbf8af5
Signed-off-by: Edwin Kempin <edwin.kempin@gmail.com>
4 files changed