[ISSUE 142] update error message

Author: dedece35

src/main/java/fr/greencodeinitiative/python/checks/AvoidMultipleIfElseStatementCheck.java

@@ -47,7 +47,7 @@
 @Rule(key = "EC2")
 public class AvoidMultipleIfElseStatementCheck extends PythonSubscriptionCheck {
 
-    public static final String ERROR_MESSAGE = "Use a switch statement instead of multiple if-else if possible";
+    public static final String ERROR_MESSAGE = "Use a match-case statement instead of multiple if-else if possible";
 
     // data structure for following usage of variable inside all the AST tree
     private VariablesPerLevelDataStructure variablesStruct = new VariablesPerLevelDataStructure();