tests: reduce length of nodeinfodata test names

Commit ddd6bef4 switched to the ustar format to fix an issue where
'make dist' fails to create a tarball because we have files with
relative names longer than 100 bytes by the time you include a
'libvirt-0.9.13' prefix.  Unfortunately, even with ustar format,
the use of 'tar -ch' tries to convert symlinks to hard links,
also with a name too long (omitting the -h works, but automake
automatically passes -h); such symlinks were added in commit
6dcf98c, which resulted in 'make dist' breaking again.  The
solution is to rename the offending symlinks to something shorter,
by shortening the entire nodeinfodata naming scheme.

* tests/nodeinfotest.c (mymain): Shorten test names.
(linuxTestNodeInfo): Accommodate new names.
* tests/nodeinfodata/*: Rename files accordingly.

tests/nodeinfodata/linux-test3/node/node7/cpu25

@@ -0,0 +1 @@
+../../cpu/cpu25

tests/nodeinfodata/linux-test3/node/node7/cpu29

@@ -0,0 +1 @@
+../../cpu/cpu29

tests/nodeinfodata/linux-test3/node/node7/cpu33

@@ -0,0 +1 @@
+../../cpu/cpu33

tests/nodeinfodata/linux-test3/node/node7/cpu37

@@ -0,0 +1 @@
+../../cpu/cpu37

tests/nodeinfodata/linux-test3/node/node7/cpu41

@@ -0,0 +1 @@
+../../cpu/cpu41

tests/nodeinfodata/linux-test3/node/node7/cpu45

@@ -0,0 +1 @@
+../../cpu/cpu45

tests/nodeinfodata/linux-test3/node/node7/meminfo

@@ -0,0 +1,29 @@
+
+Node 7 MemTotal:       67108864 kB
+Node 7 MemFree:        65303740 kB
+Node 7 MemUsed:         1805124 kB
+Node 7 Active:            60264 kB
+Node 7 Inactive:          77164 kB
+Node 7 Active(anon):      27672 kB
+Node 7 Inactive(anon):      632 kB
+Node 7 Active(file):      32592 kB
+Node 7 Inactive(file):    76532 kB
+Node 7 Unevictable:           0 kB
+Node 7 Mlocked:               0 kB
+Node 7 Dirty:                 0 kB
+Node 7 Writeback:             0 kB
+Node 7 FilePages:        109772 kB
+Node 7 Mapped:             5508 kB
+Node 7 AnonPages:         27668 kB
+Node 7 Shmem:               648 kB
+Node 7 KernelStack:         208 kB
+Node 7 PageTables:         1820 kB
+Node 7 NFS_Unstable:          0 kB
+Node 7 Bounce:                0 kB
+Node 7 WritebackTmp:          0 kB
+Node 7 Slab:              19372 kB
+Node 7 SReclaimable:      11024 kB
+Node 7 SUnreclaim:         8348 kB
+Node 7 HugePages_Total:     0
+Node 7 HugePages_Free:      0
+Node 7 HugePages_Surp:      0