Update IdenticalVerifier.java

dmn-verifier-app/src/main/java/de/unikoblenz/fgbks/dmn/core/verifier/IdenticalVerifier.java

@@ -85,7 +85,7 @@ public class IdenticalVerifier extends AbstractVerifier {
     sb.append(currentRuleIdentifiers.get(0).getTableName());
     sb.append(" are identical.");
     if (isDifferentConclusion) {
-      sb.append(" The output has different conclusions!");
+      sb.append(" The outputs have different conclusions!");
     } else {
       sb.append(" The output is the same.");
     }