ref: b86ca0bf8a11e9f03aa0a6af915285ef2bf80bd3
dir: /libc/runestrdup.c/
#include <u.h>
#include <libc.h>
Rune*
runestrdup(Rune *s) 
{  
	Rune *ns;
	ns = malloc(sizeof(Rune)*(runestrlen(s) + 1));
	if(ns == 0)
		return 0;
	return runestrcpy(ns, s);
}