Fix error in make valgrind

[WangHanChi]

Because "chmod u+x $(patched_file)" this command need root prtmission,
so I add "sudo" in this command.

[jserv]

Because "chmod u+x $(patched_file)" this command need root prtmission, so I add "sudo" in this command.

You should instead present rational explanation behind why superuser permission is required.

[WangHanChi]

In my observation, I found that if I use "sudo make valgrind", it will cause the permissions in some files become root.
And there will be a error when make or make clean in next time.
In short, I misused the "sudo" and made this mistake.
Therefore, this pull request is invalid.