+ k = kvp_make("wibble", "spong",
+ "blit", "blat",
+ (char *)0);
+ check_string(kvp_urlencode(k, &n),
+ "blit=blat&wibble=spong");
+ k = kvp_make("wibble", (char *)0,
+ "blit", "blat",
+ (char *)0);
+ check_string(kvp_urlencode(k, &n),
+ "blit=blat&wibble=");