YANG: Line number and character position addition for cardinality failure + Increase readability of Error message and function name

Change-Id: I467a536a9d2a6cbb29873491fdb0a91f211deefd
diff --git a/src/test/java/org/onosproject/yangutils/parser/impl/listeners/MinElementsListenerTest.java b/src/test/java/org/onosproject/yangutils/parser/impl/listeners/MinElementsListenerTest.java
index 7f4a6f6..22b1b83 100644
--- a/src/test/java/org/onosproject/yangutils/parser/impl/listeners/MinElementsListenerTest.java
+++ b/src/test/java/org/onosproject/yangutils/parser/impl/listeners/MinElementsListenerTest.java
@@ -133,7 +133,8 @@
     @Test
     public void processMinElementsInvalidCardinality() throws IOException, ParserException {
         thrown.expect(ParserException.class);
-        thrown.expectMessage("YANG file error: Invalid cardinality of min-elements in leaf-list \"invalid-interval\".");
+        thrown.expectMessage("YANG file error: \"min-elements\" is defined more than once in \"leaf-list " +
+                "invalid-interval\".");
         YangNode node = manager.getDataModel("src/test/resources/MinElementsInvalidCardinality.yang");
     }