* gdbcmd.h (detachlist): Declare.

	* gdbcmd.h (detachlist): Declare.
	* infcmd.c (_initialize_infcmd): Define "detach" as prefix
	command.
	* linux-fork.c (_initialize_linux_fork): Rename
	"detach-checkpoint" to "detach checkpoint" and "detach-fork" to
	"detach fork".
	* cli/cli-cmds.c (detachlist): Define.
	(init_cmd_lists): Initialize it.
	* cli/cli-cmds.h (detachlist): Declare.

doc/:
	* gdb.texinfo (Processes): Rename "detach-fork" to "detach fork".

testsuite/:
	* gdb.base/multi-forks.exp: Use "detach fork" instead of
	"detach-fork".