* cpplex.c (cpp_token_len): Tighten up.

	(cpp_token_as_text): Need extra byte now.
	* cpplib.c (glue_header_name): Need extra 2 bytes.
	* cppmacro.c (cpp_macro_definition): Need extra byte.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@66049 138bc75d-0d04-0410-961f-82ee72b054a4