[virt-tools-list] libosinfo: autoconfiscate, etc.

[Jim Meyering]

Here are the summaries:

  [PATCH 01/11] autoconfiscate
  [PATCH 02/11] libraries must not call chdir;  avoid getcwd, too
  [PATCH 03/11] avoid gcc warnings
  [PATCH 04/11] remove decls of unused variables
  [PATCH 05/11] fix failing tests
  [PATCH 06/11] tests: fix test-filter failure
  [PATCH 07/11] avoid FP unused "osname" warning
  [PATCH 08/11] remove more declarations of unused variables
  [PATCH 09/11] include <string.h> for decl of strcmp, in test programs
  [PATCH 10/11] fix used-uninitialized bugs
  [PATCH 11/11] avoid legitimate gcc used-before-set warning

Once these are applied, all tests pass (run via "make check"),
and "make distcheck" works, along with the usual
./configure && make && make check

Note that one change above introduced some uses of stpcpy,
which is not portable to non-glibc systems.
However, I will soon propose to add a gnulib submodule and
a little infrastructure that will take care of that and a
few other portability nits.