Fix potential buffer overflows with sprintf and very large integer values.

Fix potential buffer overflows with sprintf and very large integer values.

binutuils* prdbg.c (pr_enum_type): Use a buffer big enough to hold an
	extremely large decimal value.
	(pr_range_type): Likewise.
	(pr_array_type): Likewise.
	(pr_struct_field): Likewise.
	(pr_class_baseclass): Likewise.
	(pr_class_method_variant): Likewise.
	(pr_tag_type): Likewise.
	(pr_int_constant): Likewise.
	(pr_typed_constant): Likewise.
	(pr_variable): Likewise.
	(pr_function_parameter): Likewise.
	(pr_start_block): Likewise.
	(pr_lineno): Likewise.
	(pr_end_block): Likewise.
	(tg_enum_type): Likewise.
	(tg_int_constant): Likewise.
	(tg_typed_constant): Likewise.
	(tg_start_block): Likewise.

gas	* macro.c (macro_expand_body): Use a buffer big enough to hold an
	extremely large integer.