Fix r1397: rgb colors are between 0 and 0xff
Fix r1397: rgb colors are between 0 and 0xff

This commit was SVN r1398.

The following SVN revision numbers were found above:
  r1397 --> 209c1755d9b3f4c47c9843358f7e631d4bc9974a

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