binutils, ld: dequote libctf error messages

binutils, ld: dequote libctf error messages

These are not identifiers and should not be quoted.  (Also, quoting them
just looks odd.)

Adjust diagnostics tests accordingly.

binutils/ChangeLog
2020-08-27  Nick Alcock  <nick.alcock@oracle.com>

	* objdump.c (dump_ctf_errs): Unquote CTF error messages.
	* readelf.c (dump_ctf_errs): Likewise.

ld/ChangeLog
2020-08-27  Nick Alcock  <nick.alcock@oracle.com>

	* ldlang.c (dump_ctf_errs): Unquote CTF error messages.
	(ldlang_open_ctf): Likewise.
	(lang_merge_ctf): Likewise.
	(lang_write_ctf): Likewise.
	* testsuite/ld-ctf/diag-ctf-version-f.d: Adjust.
	* testsuite/ld-ctf/diag-cttname-invalid.d: Adjust.
	* testsuite/ld-ctf/diag-decompression-failure.d: Adjust.
	* testsuite/ld-ctf/diag-parname.d: Adjust.
	* testsuite/ld-ctf/diag-unsupported-flag.d: Adjust.
	* testsuite/ld-ctf/diag-wrong-magic-number-mixed.d: Adjust.
	* testsuite/ld-ctf/diag-wrong-magic-number.d: Adjust.