modified detection

• 177564f5_bigip_SOL000132946.nasl • 1.4
• 164607nutanix_NXSA-AOS-6_0_2_6.nasl • 1.9
• 167224nutanix_NXSA-AOS-5_20_5.nasl • 1.14
• 189370nutanix_NXSA-AOS-6_7_1_5.nasl • 1.2
• 164800nutanix_NXSA-AOS-6_5_1_5.nasl • 1.11
• 170557nutanix_NXSA-AOS-6_6.nasl • 1.6
• 164613nutanix_NXSA-AOS-5_20_4_5.nasl • 1.10
• 164564nutanix_NXSA-AOS-6_0_2_5.nasl • 1.8