Start extracting author line from /root/tools/ChangeLog-2.6.12...
Restored the author line to file ./tmp_author.

./patch_sta /root/tools/ChangeLog-2.6.12 -l 2
Total patches of this release: 1860
Averagely, every person commited 4 patches
We have a long tail:
There are 251 people who committed less than 2 patch.
But their contribution is about 16% of total