polish this example

Author: petercorke

examples/timer/thread1.m

@@ -2,9 +2,10 @@ function thread1() %#codegen
 
     stllog('hello from thread1');
 
-    for i=1:20
+    for i=1:100
         stl.semwait(0)
-        stl.log('wakeup');
+        ii = int32(i)
+        stl.log('wakeup %d', ii);
     end
 end
 

examples/timer/user.m

@@ -13,9 +13,9 @@
     stllog('thread id %d', t1)
 
     timer = stl.timer('timer1', 2.0, s1);
+    
     join(t1);  % wait for thread 1 to finish
 
-    
     % done, exiting will tear down all the threads
 
 end