Lfun:	set_sp - set the amount of spell points in a monster

Synopsis:
	void set_sp(int sp)

Description:
	The set_sp function sets the amount of spell points and the amount of
	maximum spell points in a monster to sp.

Return value:
	none

Examples:
	set_sp(400);

Note:
	Monsters get a default amount of spell points value via set_level
	according to their level!

See also: monster/set_level, living/query_sp, monster/set_hp