Replace a cp with a user_cp.

Slightly cleaner, and should be equivalent.
We are, after all, creating file in the users dir here.

BUG=None
TEST=None

Change-Id: I2c5ce319878dbe496fc652a521b5b495d897398f
Reviewed-on: https://gerrit.chromium.org/gerrit/57825
Reviewed-by: David James <davidjames@chromium.org>
Commit-Queue: Peter Mayo <petermayo@chromium.org>
Tested-by: Peter Mayo <petermayo@chromium.org>
1 file changed