* valprint.c (val_print): Extend comment.

	* valprint.c (val_print): Extend comment.
	* ada-valprint.c (ada_valprint): Rewrite comment deferring
	interface explanation to val_print.
	(ada_val_print_array): Adjust comment to current interface.
	(print_field_values): Adjust comment to current interface.
	* c-valprint.c (c_val_print): Rewrite comment deferring interface
	explanation to val_print.
	* f-valprint.c (f_val_print): Ditto.
	* jv-valprint.c (java_val_print): Ditto.
	* m2-valprint.c (m2_val_print): Ditto.
	* p-valprint.c (pascal_val_print): Ditto.