inspect-macho projected an empty Mach-O segment or section name as the
display label "unknown", so an exhaustive segment inventory for an
ordinary MH_OBJECT reported a segment literally named "unknown" while
the raw LC_SEGMENT_64 field showed "". Object files place every section
in one unnamed segment, so the empty name is a source value. Segment and
section names are now reported exactly as observed.
Fixes#3875
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>