patch 1/2 debuginfod client

[Frank Ch. Eigler]

Hi -

> [...libdw* debuginfod_find_* calls]
> But given that they are almost similar, I would suggest to move both
> into their own file sharing most of the code to do the dlopen dance.

Where?  It can't be in the solib.  We're talking about sharing, what,
two copies of three or four lines of code (the two dlopen attempts?),
and a replacement function will not be shorter, all-in.


- FChE