Add license notice back and remove left over git stuff.

worldedit-core/src/main/java/com/sk89q/worldedit/function/mask/Masks.java

@@ -1,7 +1,23 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.sk89q.worldedit.function.mask;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-
 import com.sk89q.worldedit.math.BlockVector2;
 import com.sk89q.worldedit.math.BlockVector3;
 
@@ -49,12 +65,11 @@ public final class Masks {
     /**
      * Negate the given mask.
      *
-     * @param finalMask the mask
+     * @param mask the mask
      * @return a new mask
      */
-//<<<<<<< HEAD
+    public static Mask negate(final Mask mask) {
-    public static Mask negate(final Mask finalMask) {
+        return mask.inverse();
-        return finalMask.inverse();
     }
 
     /**
@@ -156,5 +171,4 @@ public final class Masks {
         }
     }
 
-
 }