Factorize the generic cpuset string conversion ...
Factorize the generic cpuset string conversion ...

Factorize the generic cpuset string conversion check in tests/hwloc_bitmap_string.c
Add a finite non-null case
Add some messages

This commit was SVN r3012.

shekkbuilder/hwloc,ggouaillardet/hwloc,ggouaillardet/hwloc,shekkbuilder/hwloc,ggouaillardet/hwloc,shekkbuilder/hwloc,shekkbuilder/hwloc,ggouaillardet/hwloc