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	labels in traditional C.

	* c-parse.in (unop +): Warn about the unary plus operator for
	traditional C.

	* c-typeck.c (store_init_value): Warn about automatic aggregate
	initialization for traditional C.

	* invoke.texi (-Wtraditional): Document new warnings.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@34997 138bc75d-0d04-0410-961f-82ee72b054a4