modified detection

• 198720redhat_unpatched_ovmf-rhel5.nasl • 1.2
• 198726redhat_unpatched_ovmf-rhel6.nasl • 1.3
• 198734redhat_unpatched_ovmf-rhel7.nasl • 1.3
• 198729redhat_unpatched_ovmf-rhel8.nasl • 1.5
• 198733redhat_unpatched_ovmf-rhel9.nasl • 1.4
• 198420redhat_unpatched_ruby-rhel4.nasl • 1.2
• 198386redhat_unpatched_ruby-rhel5.nasl • 1.2
• 198387redhat_unpatched_ruby-rhel6.nasl • 1.2
• 202299redhat_unpatched_ruby-rhel7_module.nasl • 1.2
• 198343redhat_unpatched_ruby-rhel7.nasl • 1.4
• 198400redhat_unpatched_ruby-rhel8.nasl • 1.4
• 199256redhat_unpatched_kernel-rhel4.nasl • 1.3
• 199257redhat_unpatched_kernel-rhel5.nasl • 1.5
• 199273redhat_unpatched_kernel-rhel6.nasl • 1.7
• 199280redhat_unpatched_kernel-rhel7.nasl • 1.9
• 199272redhat_unpatched_kernel-rhel8.nasl • 1.8
• 199265redhat_unpatched_kernel-rhel9.nasl • 1.10