* fix sleep functions

Author: EdmondDantes

tests/sleep/006-all_sleep_functions_comparison.phpt

@@ -53,7 +53,7 @@ spawn(function() {
 
 echo "Full sleep functions test completed\n";
 ?>
---EXPECT--
+--EXPECTF--
 Starting full sleep functions test
 Full sleep functions test completed
 Testing sleep() async
@@ -64,4 +64,4 @@ Background task running
 time_nanosleep(0, 100000000) result: true, elapsed: 0.1s
 time_sleep_until() result: true, elapsed: 0.2s
 usleep(200000) elapsed: 0.2s
-sleep(1) result: 0, elapsed: 1.0s
+sleep(1) result: 0, elapsed: %ds