exampls/nxhello: Increase the amount of time that the text is displayed before erasing it

examples/nxhello/nxhello_main.c

@@ -248,7 +248,7 @@ int nxhello_main(int argc, char *argv[])
 
   sleep(1);
   nxhello_hello(g_nxhello.hbkgd);
-  sleep(1);
+  sleep(5);
 
   /* Release background */
 

examples/nxtext/nxtext_main.c

@@ -335,6 +335,7 @@ int nxtext_main(int argc, char **argv)
     {
       (void)sem_wait(&g_semevent);
     }
+
   printf("nxtext_main: Screen resolution (%d,%d)\n", g_xres, g_yres);
 
   /* Now loop, adding text to the background and periodically presenting