Fixed sonar warnings

Author: javadev

src/main/java/com/github/underscore/Underscore.java

@@ -65,7 +65,8 @@
     "java:S2272",
     "java:S2789",
     "java:S3740",
-    "java:S5852"
+    "java:S5852",
+    "java:S8786"
 })
 public class Underscore<T> {
     private static final Map<String, Function<String, String>> FUNCTIONS = new LinkedHashMap<>();

src/test/java/com/github/underscore/UtilityTest.java

@@ -46,6 +46,7 @@
  *
  * @author Valentyn Kolesnikov
  */
+@SuppressWarnings("java:S8786")
 class UtilityTest {
 
     /*