libdwarf and dwarfdump now begin to support the DWARF5
sections .debug_tu_index and .debug_cu_index.
Removed some newly introduced trailing whitespace characters.
Now we can print the hash table data from the
 .debug_tu_index and .debug_cu_index sections (
debug fission, the .dwp object file index data).
Fixed the libdwarf ChangeLog. Minor typo in a
just-commited entry.
Clarify a comment in dwarf_die_deliv.c.
Refine that same comment again. It was actually
wrong before, not just hard to read.
the *next_cu* functions in libdwarf dwarf_die_deliv.c
return -1 (DW_DLV_NO_ENTRY), not 0, when we have gotten
through all the CUs in a section.
Now -I now prints the entire
 .debug_cu_index and .debug_tu_index sections.
libdwarf/dwarf_opaque.h:  Altered a couple comments
to make them clearer.
libdwarf/dwarf_opaque.h:  Clarified the meaning of
various CU context struct fields by adding comments.
libdwarf/dwarf_opaque.h: One new comment had a bad
indent. Fixed.
libdwarf has a new interface: dwarf_get_die_section_name()
so clients can get the object
section names
(of .debug_info of .debug_types or the same with .dwo names).
Fixed indent and trailing whitespace a couple places too.
libdwarf: minor correction addeing section name to one function
and now documents the new gdbindx and debug fission (DWP)
interfaces.
Dwarfdump: Now we use the new gdbindex and debugfission
section-name strings instead of hard coding Elf section names.
dwarfdump, dwarfdump2: Now both print the gdbindex
and .debug_[tc]u_index sections.
Here we fix some warnings and get gdbindex
to print better.  And get some section names to
come out exactly right (but not all, yet).
dwarfdump/dwarfdump.1
dwarfdump/dwarfdump.c
dwarfdump/print_gdbindex.c
dwarfdump2/dwarfdump.1
dwarfdump2/dwarfdump.cc
dwarfdump2/print_debugfission.cc
dwarfdump2/print_die.cc
dwarfdump2/print_gdbindex.cc

Here we fix some warnings.
libdwarf/dwarf_alloc.c
libdwarf/dwarf_alloc.h
libdwarf/dwarf_gdbindex.c
libdwarf/dwarf_loc.c
libdwarf/dwarf_query.c
libdwarf/dwarf_sort_line.c

Here we fix some warnings.
libdwarf/dwarf_tsearchhash.c
tsearch/dwarf_tsearchhash.c

Here we fix some warnings
libdwarf/dwarf_util.c
libdwarf/libdwarf.h.in
libdwarf/pro_alloc.c
libdwarf/pro_arange.c
libdwarf/pro_forms.c
libdwarf/pro_reloc.c
libdwarf/pro_types.c
Update dwarfdump[2] version strings.
dwarfdump/print_gdbindex.c: Fixed indents of a comment.