* printcmd.c (output_command): Always initialize fmt.size.

	* printcmd.c (output_command): Always initialize fmt.size.
	(printf_command): Use gdb_byte.
	* symfile.c (separate_debug_file_exists): Use gdb_byte.
	(load_section_callback, read_target_long_array): Likewise.
	(simple_read_overlay_table, simple_read_overlay_region_table)
	(simple_overlay_update_1): Correct calls to read_target_long_array.
	* valprint.c (partial_memory_read): Change MYADDR to a gdb_byte *.
	Also change local pointers.
	(val_print_string): Use gdb_byte.