Lfun:	set_long - set the long description of a monster

Synopsis:
	void set_long(string long)

Description:
	The set_long call sets the long description of a monster. It is
	displayed whenever someone is looking at the monster. The argument
	must be a string that is terminated with a newline ('\n') and
	punctuation marks are expected ;-) - it's meant for reading!

Return value:
	none

Examples:
	set_long("The monster looks ferocious!\n");

See also: monster/set_name, monster/set_short