probes/selinuxboolean: Fix style in borrowed code, improve selinux FS detection
probes/selinuxboolean: Fix style in borrowed code, improve selinux FS detection

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