Apply spotless

legacy-fabric-keybindings-api-v1/1.12.2/src/main/java/net/legacyfabric/fabric/mixin/client/keybinding/KeyBindingMixin.java

@@ -1,3 +1,20 @@
+/*
+ * Copyright (c) 2020 - 2022 Legacy Fabric
+ * Copyright (c) 2016 - 2022 FabricMC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package net.legacyfabric.fabric.mixin.client.keybinding;
 
 import net.minecraft.client.option.KeyBinding;