[test-text-perf] Small fix-ups

- Fix a typo in a for loop in create_label which left 'i'
  uninitialised and caused a crash if you're unlucky.

- Set the CLUTTER_VBLANK=none environment variable.

- Don't quit on a keypress.

- Trailing whitespace tidy up.

tests/micro-bench/test-text-perf.c

@@ -40,7 +40,7 @@ gboolean idle (gpointer data)
 }
 
 static ClutterActor *
-create_label()
+create_label ()
 {
   ClutterColor label_color = { 0xff, 0xff, 0xff, 0xff };
   ClutterActor *label;
@@ -51,7 +51,7 @@ create_label()
   font_name = g_strdup_printf ("Monospace %dpx", font_size);
 
   str = g_string_new (NULL);
-  for (i < 0; i < n_chars; i++)
+  for (i = 0; i < n_chars; i++)
     g_string_append_c (str, 'A' + (i % 26));
 
   label = clutter_text_new_with_text (font_name, str->str);
@@ -72,6 +72,8 @@ main (int argc, char *argv[])
   int              w, h;
   int              row, col;
 
+  g_setenv ("CLUTTER_VBLANK", "none", FALSE);
+
   clutter_init (&argc, &argv);
 
   if (argc != 3)
@@ -112,12 +114,9 @@ main (int argc, char *argv[])
 
   clutter_actor_show_all (stage);
 
-  g_signal_connect (stage, "key-press-event",
-		    G_CALLBACK (clutter_main_quit), NULL);
-  
   g_idle_add (idle, (gpointer) stage);
 
-  clutter_main();
+  clutter_main ();
 
   return 0;
 }