OpenSCAP/openscap — pull request #33 by jan-cerny (2014-12-17 13:35:15+00:00)
Title: Fixed a segfault when working with empty xccdf variable.

Put an empty string instead of NULL if xccdf_value_binding_get_value
returns NULL.
First, we do that before resolving variables conflict.
Second, we do that when adding variables to variable model.