minor updates to test

localtests/datetime-submillis/create.sql

@@ -17,7 +17,7 @@ create event gh_ost_test
   starts current_timestamp
   ends current_timestamp + interval 60 second
   on completion not preserve
-  enable
+  disable on slave
   do
 begin
   insert into gh_ost_test values (null, 11, now(), now(), now(), 0);

localtests/test.sh

@@ -164,6 +164,7 @@ test_single() {
     diff $orig_content_output_file $ghost_content_output_file
 
     echo "diff $orig_content_output_file $ghost_content_output_file"
+
     return 1
   fi
 }