Comment # 10 on bug 1156929 from David Diaz

The issue was in the SCR agent in charge to deal with the file since it's
original design was obsolete for the current sudoers file format.

Summarizing, the agent stores the empty lines and comments before a rule or
alias as its comment. Thus, everything after the last rule or alias found was
being discarded because the agent does not know/understand the directives and
they look like comments (e.g. #includedir /etc/sudoers.d)

By now, it has been patched to not kill those lines, keeping all the content
found after the last rule or alias.

See the original PR at https://github.com/yast/yast-sudo/pull/13 for more
details.