message: elle.service: nuke a warning
diff: @@ -119,7 +119,7 @@ namespace elle
  {
  bfs::path path(value.path);
  ELLE_DEBUG_SCOPE("%s: store metadata for %s", *this, path);
  - ELLE_DUMP("%s: %s", *this, value);
  + { ELLE_DUMP("%s: %s", *this, value); } // Braces for gcc warnings.
  // Update metadata
  {
  // Preserve previously registered folder content.
  