Prevent NULL dereference
Prevent NULL dereference

Addressing:
 openscap-1.3.5/src/XCCDF_POLICY/xccdf_policy_remediate.c:115:38: warning[-Wanalyzer-possible-null-argument]: use of possibly-NULL 'current' where non-null expected

OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap