CBQE-2379 after support debian7 in install script,
upgrade failed due to missing one param in function get all builds that let to install upgrade build failed

Change-Id: I2b95a7d4153b4471d80c76dcd79018c4c26d3324
Reviewed-on: http://review.couchbase.org/40549
Reviewed-by: Thuan Nguyen <soccon@gmail.com>
Tested-by: Thuan Nguyen <soccon@gmail.com>