2014-12-09:  David Anderson
     * dwarf_tsearchhash.c(tsearch_inner): Add check for NULL
       so we do not just coredump if out of memory.
     * dwarf_tsearchred.c(tsearch_inner): Add check for NULL
       so we do not just coredump if out of memory.
2014-09-10:  David Anderson
     * dwarf_tsearchhash.c(calculate_allowed_fill): Moved a declaration
       to avoid using C99 feature.
2014-08-04:  David Anderson
     * dwarf_tsearchhash.c: Changed to avoid compiler warnings
       about const casts whereever possible.
2014-01-29:  David Anderson
     * All files: All added. Trailing whitespace removed.