builtins.c, [...]: Avoid "`" as left quote, using "'" or %q, %< and %> as appropriate.

builtins.c, [...]: Avoid "`" as left quote, using "'" or %q, %< and %> as appropriate.

	* builtins.c, c-common.c, c-decl.c, c-format.c, c-format.h,
	c-parse.in, c-pch.c, c-pragma.c, collect2.c, final.c, gcc.c,
	gcov.c, opts.c, pretty-print.h, protoize.c, reg-stack.c, rtl.c,
	tlink.c, config/alpha/alpha.c, config/arc/arc.c, config/arm/arm.c,
	config/avr/avr.c, config/c4x/c4x.c, config/darwin.c,
	config/frv/frv.c, config/h8300/h8300.c, config/i386/i386.c,
	config/i386/winnt.c, config/ia64/ia64.c, config/ip2k/ip2k.c,
	config/iq2000/iq2000.c, config/m32r/m32r.c,
	config/m68hc11/m68hc11.c, config/m68k/m68k.c, config/m68k/m68k.h,
	config/mcore/mcore.c, config/mips/mips.c, config/mmix/mmix.c,
	config/ns32k/ns32k.c, config/rs6000/host-darwin.c,
	config/rs6000/rs6000.c, config/s390/s390.c, config/sh/sh.c,
	config/sh/symbian.c, config/stormy16/stormy16.c,
	config/v850/v850.c: Avoid "`" as left quote, using "'" or %q, %<
	and %> as appropriate.  Use %' as apostrophe in diagnostics where
	applicable.  Use %< and %> in place of '' quotes where applicable.
	Use %qs in place of %<%s%>.  Consistently quote __builtin function
	names.

ada:
	* misc.c (gnat_handle_option): Use %< and %> for quoting in
	warning message.

cp:
	* call.c, class.c, decl.c, decl2.c, error.c, mangle.c, parser.c,
	pt.c, search.c, semantics.c, typeck.c: Use %q, %< and %> for
	quoting in diagnostics.
	* parser.c (cp_parser_sizeof_operand): Use '' instead of `' for
	quoting in printf format.
	* decl.c (duplicate_decls, start_decl): Use %qD instead of
	unquoted %D.

objc:
	* objc-act.c: Use %q, %< and %> for quoting in diagnostics.

testsuite:
	* gcc.dg/builtin-prefetch-1.c: Adjust expected messages.

From-SVN: r90337