Security update for yast2-users (important)

yast2-users was updated to fix one security issue.

This security issue was fixed:

• CVE-2016-1601: Empty passwords fields in /etc/shadow after SLES 12 SP1
  autoyast installation (bsc#974220).

This update includes a script that fixes installations that we’re affected
by this problem. It is run automatically upon installing the update.

This non-security issue was fixed:

• bsc#971804: Set root password correctly when using a minimal profile

This update was imported from the SUSE:SLE-12-SP1:Update update project.