Fix rules text for abilities with up to one target

Mage.Tests/src/test/java/org/mage/test/cards/text/WrennAndSixTest.java

@@ -0,0 +1,17 @@
+package org.mage.test.cards.text;
+
+import mage.cards.Card;
+import mage.cards.repository.CardRepository;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class WrennAndSixTest {
+
+    @Test
+    public void testFirstLoyaltyAbilityRulesText() {
+        Card wrennAndSix = CardRepository.instance.findCard("Wrenn and Six").getCard();
+        String firstLoyaltyAbilityRulesText = wrennAndSix.getRules().get(0);
+
+        Assert.assertEquals(firstLoyaltyAbilityRulesText, "+1: Return up to one target land card from your graveyard to your hand.");
+    }
+}