Fix problems translating messages when a percentage sign appears at the end of a...

Fix problems translating messages when a percentage sign appears at the end of a string.

	PR 28051
gas	* config/tc-i386.c (offset_in_range): Reformat error messages in
	order to fix problems when translating.
	(md_assemble): Likewise.
	* messages.c (as_internal_value_out_of_range): Likewise.
	* read.c (emit_expr_with_reloc): Likewise.
	* testsuite/gas/all/overflow.l Change expected output format.
	* po/gas.pot: Regenerate.

bfd	* coff-rs6000.c (xcoff_reloc_type_tls): Reformat error messages in
	order to fix problems when translating.
	* cofflink.c (_bfd_coff_write_global_sym): Likewise.
	* elfnn-aarch64.c (_bfd_aarch64_erratum_843419_branch_to_stub):
	Likewise.
	* po/bfd.pot: Regenerate.