Fix whitespace issues in sysctl_probe.c
Fix whitespace issues in sysctl_probe.c

Fixes: 31b543347 ("Add sysctl_probe_main() for FreeBSD")

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