nodeinfo: add some more tests

Test 2 data grabbed from a 2-core 1-node laptop.
Test 3 data grabbed from a 48-cpu AMD Magny Cours box.

* tests/nodeinfodata/linux-nodeinfo-sysfs-test-2*: New test data.
* tests/nodeinfodata/linux-nodeinfo-sysfs-test-3*: Likewise.
* tests/nodeinfotest.c (mymain): Run them.
* cfg.mk
(exclude_file_name_regexp--sc_prohibit_empty_lines_at_EOF): Exempt
new test files.

tests/nodeinfodata/linux-nodeinfo-sysfs-test-3/node/node5/meminfo

@@ -0,0 +1,29 @@
+
+Node 5 MemTotal:       67108864 kB
+Node 5 MemFree:        65315792 kB
+Node 5 MemUsed:         1793072 kB
+Node 5 Active:            92864 kB
+Node 5 Inactive:         118500 kB
+Node 5 Active(anon):      17360 kB
+Node 5 Inactive(anon):      280 kB
+Node 5 Active(file):      75504 kB
+Node 5 Inactive(file):   118220 kB
+Node 5 Unevictable:           0 kB
+Node 5 Mlocked:               0 kB
+Node 5 Dirty:                 0 kB
+Node 5 Writeback:             0 kB
+Node 5 FilePages:        194028 kB
+Node 5 Mapped:             7680 kB
+Node 5 AnonPages:         13240 kB
+Node 5 Shmem:               304 kB
+Node 5 KernelStack:         160 kB
+Node 5 PageTables:         1756 kB
+Node 5 NFS_Unstable:          0 kB
+Node 5 Bounce:                0 kB
+Node 5 WritebackTmp:          0 kB
+Node 5 Slab:              30128 kB
+Node 5 SReclaimable:      21380 kB
+Node 5 SUnreclaim:         8748 kB
+Node 5 HugePages_Total:     0
+Node 5 HugePages_Free:      0
+Node 5 HugePages_Surp:      0