Name: set_con - set the constitution stat in a living

Syntax:
	set_con(int con)

Description:
	The set_con call sets the constitution stat in a living. Normal values
	for str are in the range from 1 to 20. It also sets the max_hp to
	42 + con*8.

Return value: none

Examples:
	this_player()->set_con(10);

See also: living/set_int, living/set_dex, living/set_str, living/query_con