[Libguestfs] [PATCH v2 FOR DISCUSSION ONLY 1/2] scripts: Add a script for formatting all C code in the project.

[Richard W.M. Jones]

See previous version:
https://www.redhat.com/archives/libguestfs/2016-April/msg00021.html

The formatting in this second version isn't too bad.  Still
a few corner cases to sort out.

Rich.