Change grep pattern to avoid occasional memory size and address conflict

[liang-cong-red-hat]

results: (01/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_strict.mem_mode_strict.single_node: PASS (36.39 s) (02/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_strict.mem_mode_strict.multiple_nodes: PASS (37.56 s) (03/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_strict.mem_mode_interleave.single_node: PASS (44.92 s) (04/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_strict.mem_mode_interleave.multiple_nodes: PASS (44.26 s) (05/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_strict.mem_mode_preferred.single_node: PASS (45.68 s) (06/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_strict.mem_mode_preferred.multiple_nodes: PASS (44.38 s) (07/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_strict.mem_mode_restrictive.single_node: PASS (9.00 s) (08/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_strict.mem_mode_restrictive.multiple_nodes: PASS (8.95 s) (09/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_strict.no_mem_mode.single_node: PASS (42.66 s) (10/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_strict.no_mem_mode.multiple_nodes: PASS (45.53 s) (11/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_strict.no_mem_mode.no_node: PASS (44.18 s) (12/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_interleave.mem_mode_strict.single_node: PASS (43.89 s) (13/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_interleave.mem_mode_strict.multiple_nodes: PASS (43.47 s) (14/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_interleave.mem_mode_interleave.single_node: PASS (77.15 s) (15/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_interleave.mem_mode_interleave.multiple_nodes: PASS (38.35 s) (16/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_interleave.mem_mode_preferred.single_node: PASS (43.93 s) (17/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_interleave.mem_mode_preferred.multiple_nodes: PASS (45.03 s) (18/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_interleave.mem_mode_restrictive.single_node: PASS (9.03 s) (19/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_interleave.mem_mode_restrictive.multiple_nodes: PASS (8.86 s) (20/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_interleave.no_mem_mode.single_node: PASS (42.28 s) (21/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_interleave.no_mem_mode.multiple_nodes: PASS (45.60 s) (22/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_interleave.no_mem_mode.no_node: PASS (43.10 s) (23/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_preferred.mem_mode_strict.single_node: PASS (44.44 s) (24/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_preferred.mem_mode_strict.multiple_nodes: PASS (44.05 s) (25/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_preferred.mem_mode_interleave.single_node: PASS (42.09 s) (26/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_preferred.mem_mode_interleave.multiple_nodes: PASS (44.63 s) (27/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_preferred.mem_mode_preferred.single_node: PASS (45.38 s) (28/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_preferred.mem_mode_preferred.multiple_nodes: PASS (43.12 s) (29/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_preferred.mem_mode_restrictive.single_node: PASS (8.79 s) (30/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_preferred.mem_mode_restrictive.multiple_nodes: PASS (8.77 s) (31/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_preferred.no_mem_mode.single_node: PASS (42.58 s) (32/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_preferred.no_mem_mode.multiple_nodes: PASS (44.37 s) (33/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_preferred.no_mem_mode.no_node: PASS (44.78 s) (34/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_restrictive.mem_mode_strict.single_node: PASS (8.94 s) (35/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_restrictive.mem_mode_strict.multiple_nodes: PASS (9.02 s) (36/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_restrictive.mem_mode_interleave.single_node: PASS (14.94 s) (37/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_restrictive.mem_mode_interleave.multiple_nodes: PASS (8.89 s) (38/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_restrictive.mem_mode_preferred.single_node: PASS (8.86 s) (39/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_restrictive.mem_mode_preferred.multiple_nodes: PASS (8.75 s) (40/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_restrictive.mem_mode_restrictive.single_node: PASS (44.94 s) (41/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_restrictive.mem_mode_restrictive.multiple_nodes: PASS (44.77 s) (42/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_restrictive.no_mem_mode.single_node: PASS (8.93 s) (43/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_restrictive.no_mem_mode.multiple_nodes: PASS (9.01 s) (44/44) type_specific.io-github-autotest-libvirt.guest_numa_node_tuning.host_guest_mixed_memory_binding.memnode_mode_restrictive.no_mem_mode.no_node: PASS (8.91 s)