gdb/

	gdb/
	* breakpoint.c (multi_start, multi_end, last_was_multi): Delete.
	(prev_breakpoint_count): New.
	(set_breakpoint_count): Adjust.
	(rbreak_start_breakpoint_count): New.
	(start_rbreak_breakpoints): Adjust.
	(end_rbreak_breakpoints): Adjust.
	(struct commands_info) <arg>: New field.
	(do_map_commands_command): Tweak output to include breakpoint spec
	range.
	(commands_command_1): Adjust.  Avoid setting an xfree cleanup if
	ARG was empty on entry.  Set INFO's arg.
	(create_breakpoint): Adjust.

	* NEWS: Clarify `commands' changes.

	gdb/doc/
	* gdb.texinfo (Break Commands): Clarify `commands' changes, and
	add cross reference.

	gdb/testsuite/
	* gdb.base/commands.exp: Adjust.
	* gdb.cp/extern-c.exp: Adjust.