fix inverted logic on enderman attack

Spigot-Server-Patches/0296-EndermanAttackPlayerEvent.patch

@@ -1,4 +1,4 @@
-From 514d84da549d03ac5c8c2ca7bc83bb4ef97c3c72 Mon Sep 17 00:00:00 2001
+From be70ad267e3dbf854a44c8759f6ec8088b9c681a Mon Sep 17 00:00:00 2001
 From: Aikar <aikar@aikar.co>
 Date: Tue, 1 May 2018 20:18:54 -0400
 Subject: [PATCH] EndermanAttackPlayerEvent
@@ -8,7 +8,7 @@ Allow control over whether or not an enderman aggros a player.
 This allows you to override/extend the pumpkin/stare logic.
 
 diff --git a/src/main/java/net/minecraft/server/EntityEnderman.java b/src/main/java/net/minecraft/server/EntityEnderman.java
-index 6ebfb12fb..f0da99d87 100644
+index 6ebfb12fb..6fc337706 100644
 --- a/src/main/java/net/minecraft/server/EntityEnderman.java
 +++ b/src/main/java/net/minecraft/server/EntityEnderman.java
 @@ -149,7 +149,15 @@ public class EntityEnderman extends EntityMonster {
@@ -17,9 +17,9 @@ index 6ebfb12fb..f0da99d87 100644
  
 +    // Paper start - OBFHELPER - ok not really, but verify this on updates
      private boolean f(EntityHuman entityhuman) {
-+        boolean cancel = f_real(entityhuman);
++        boolean shouldAttack = f_real(entityhuman);
 +        com.destroystokyo.paper.event.entity.EndermanAttackPlayerEvent event = new com.destroystokyo.paper.event.entity.EndermanAttackPlayerEvent((org.bukkit.entity.Enderman) getBukkitEntity(), (org.bukkit.entity.Player) entityhuman.getBukkitEntity());
-+        event.setCancelled(cancel);
++        event.setCancelled(!shouldAttack);
 +        return event.callEvent();
 +    }
 +    private boolean f_real(EntityHuman entityhuman) {