atomic: single threaded test needs to include int.h for PRIxXX
atomic: single threaded test needs to include int.h for PRIxXX

Signed-off-by: Josef 'Jeff' Sipek <a620f141433c70aa9e43778305a6c68cbfadfb25@josefsipek.net>


jeffpc/libjeffpc,jeffpc/libjeffpc,jeffpc/libjeffpc,jeffpc/libjeffpc