prevent double failure for exit test

Author: denofevil

test-base/test_base.rb

@@ -111,8 +111,8 @@ def start_ruby_process(script)
       else
         status = wait_thr.value
       end
-      fail "ERROR: \"#{process}\" failed with exitstatus=#{status.exitstatus}" unless status.success?
       @process_finished = true
+      fail "ERROR: \"#{process}\" failed with exitstatus=#{status.exitstatus}" unless status.success?
     end
 
   end