tst-kill: fix timeout test

The timeout test sets a 2 second timeout and a 1 second alarm, and expects
the timeout to happen first.

Change the timeout to 0.5 seconds.

Signed-off-by: Avi Kivity <avi@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

tests/tst-kill.cc

@@ -100,9 +100,9 @@ int main(int ac, char** av)
     report(sr != SIG_ERR, "set SIGALRM handlerto SIG_IGN");
 
     struct timeval tv = {0};
-    tv.tv_sec = 2;
+    tv.tv_usec = 500000;
     auto res = setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
-    report(res == 0, "set socket receive timeout 2 seconds");
+    report(res == 0, "set socket receive timeout 0.5 seconds");
 
     alarm(1);