re PR driver/30330 (-Wdeprecated is not documented)

re PR driver/30330 (-Wdeprecated is not documented)

	PR documentation/30330
	* doc/invoke.texi (C++ Dialect Options)
	(Objective-C and Objective-C++ Dialect Options, Warning Options):
	For each warning option -Wfoo that allows -Wno-foo, ensure both
	-Wfoo and -Wno-foo are listed in the option index.  Fix index
	entry of -Wswitch-default, index -Wnormalized= including the
	`=', and -Wlarger-than-@var{len} including @var{len}.

From-SVN: r132131