msync_sync
str = msync_sync("garbage", MS_ASYNC);
ATF_REQUIRE(msync_sync("error", -1) != NULL);
ATF_REQUIRE(msync_sync("error", INT_MAX) != NULL);
str = msync_sync("garbage", MS_INVALIDATE);
ATF_TC(msync_sync);
ATF_TC_HEAD(msync_sync, tc)
ATF_TC_BODY(msync_sync, tc)
str = msync_sync("garbage", MS_SYNC);
ATF_TP_ADD_TC(tp, msync_sync);
static const char *msync_sync(const char *, int);