add line

rule-engine/rule-engine-components/src/test/java/org/thingsboard/rule/engine/math/TbMathArgumentValueTest.java

@@ -114,4 +114,4 @@ public class TbMathArgumentValueTest {
         Throwable thrown = assertThrows(RuntimeException.class, () -> TbMathArgumentValue.fromString(value));
         Assert.assertNotNull(thrown.getMessage());
     }
-}
+}