refactored authenticator.rb to make the password length consistent
refactored authenticator.rb to make the password length consistent

Signed-off-by: John McCrae <314141fe82990ae808dd24927315b7389bb1e2bd@chf.io>

gene1wood/chef,chef/chef,chef/chef,gene1wood/chef,gene1wood/chef,chef/chef,chef/chef,gene1wood/chef