PR26349, FAIL: binutils-all/pr25543 on hpux

PR26349, FAIL: binutils-all/pr25543 on hpux

The 't' length modifier isn't in SUSv2, unsurprisingly %tx isn't
recognized by older printf implementations.  So even though 't' is
correct for ptrdiff_t we can't use it.  Also, _bfd_int64_high and
_bfd_int64_low disappeared in 2008.

	PR 26349
	* readelf.c (dump_relocations): Use BFD_VMA_FMT to print offset
	and info fields.
	(dump_section_as_strings): Don't use %tx to display offset.