Stop objdump from displaying control codes embedded in symbol names.

	PR 23963
binutils* objdump.c (sanitize_string): New function.  Removes control
	characters from symbol names.
	(dump_section_header): Use new function.
	(objdump_print_symname): Likewise.
	(objdump_print_addr_with_sym): Likewise.
	(show_line): Likewise.
	(disassemble_bytes): Likewise.
	(disassemble_section): Likewise.
	(load_specific_debug_section): Likewise.
	(read_section_stabs): Likewise.
	(print_section_stabs): Likewise.
	(dump_section): Likewise.
	(dump_reloc_set): Likewise.
	(dump_relocs_in_section): Likewise.
	(dump_bfd): Likewise.
	(display_any_bfd): Likewise.

gas	* testsuite/gas/mips/mips16-branch-absolute-1.d: Adjust for the fact that
	control characters are now displayed as escape sequences.
	* testsuite/gas/mips/mips16-e.d: Likewise.
	* testsuite/gas/mips/mips16-pcrel-0.d: Likewise.
	* testsuite/gas/mips/mips16-pcrel-1.d: Likewise.
	* testsuite/gas/mips/mips16-pcrel-delay-0.d: Likewise.
	* testsuite/gas/mips/mips16-pcrel-delay-1.d: Likewise.
	* testsuite/gas/mips/mips16-pcrel-n32-0.d: Likewise.
	* testsuite/gas/mips/mips16-pcrel-n32-1.d: Likewise.
	* testsuite/gas/mips/mips16-pcrel-n64-sym32-0.d: Likewise.
	* testsuite/gas/mips/mips16-pcrel-n64-sym32-1.d: Likewise.
	* testsuite/gas/mips/mips16e2@mips16-pcrel-0.d: Likewise.
	* testsuite/gas/mips/mips16e2@mips16-pcrel-1.d: Likewise.
	* testsuite/gas/mips/mips16e2@mips16-pcrel-delay-0.d: Likewise.
	* testsuite/gas/mips/mips16e2@mips16-pcrel-delay-1.d: Likewise.
	* testsuite/gas/mips/mips16e2@mips16-pcrel-n32-0.d: Likewise.
	* testsuite/gas/mips/mips16e2@mips16-pcrel-n32-1.d: Likewise.
	* testsuite/gas/mips/mips16e2@mips16-pcrel-n64-sym32-0.d:
	Likewise.
	* testsuite/gas/mips/mips16e2@mips16-pcrel-n64-sym32-1.d:
	Likewise.
	* testsuite/gas/mips/mipsel16-e.d: Likewise.
	* testsuite/gas/mips/mipsr6@msa.d: Likewise.
	* testsuite/gas/mips/mipsr6@relax-swap3.d: Likewise.
	* testsuite/gas/mips/r6-64-n32.d: Likewise.
	* testsuite/gas/mips/r6-64-n64.d: Likewise.
	* testsuite/gas/mips/r6-n32.d: Likewise.
	* testsuite/gas/mips/r6-n64.d: Likewise.
	* testsuite/gas/mips/r6.d: Likewise.
	* testsuite/gas/mips/tmips16-e.d: Likewise.
	* testsuite/gas/mips/tmipsel16-e.d: Likewise.
	* testsuite/gas/mn10300/relax.d: Likewise.