Build Pass from file name hyphen->underscore

[Frank Ch. Eigler]

naresh kamboju <naresh.kernel@gmail.com> writes:

> [...]
> In my case I have been investigating each module behavior and functionality.
> Because of that have to use -m options for each build.
> If it is like stap_XXX, I could not find from where it is generated.
> [...]

We could canonicalize the -m name as mhiramat suggested.  We could
also add some script metadata into the generated .c/.ko files, to
allow one to look up their ancestry.

- FChE