* etags.c (C_entries): Recognise typedef of ANSI style functions.

* etags.c (C_entries): Recognise typedef of ANSI style functions.
	(C_entries): Recognise #define inside a struct.
	(C_entries): ANSI tells that preprocessor commands do not have to
	start on the first column.
	(print_help): Documentation corrected for -d and -D.
	(white, endtk): ANSI tells the vertical tab is a separator.