add missing copyright notices

src/ast_render.cpp

@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2016 Andrew Kelley
+ *
+ * This file is part of zig, which is MIT licensed.
+ * See http://opensource.org/licenses/MIT
+ */
+
 #include "ast_render.hpp"
 
 #include <stdio.h>

src/buffer.cpp

@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2016 Andrew Kelley
+ *
+ * This file is part of zig, which is MIT licensed.
+ * See http://opensource.org/licenses/MIT
+ */
+
 #include "buffer.hpp"
 #include <stdarg.h>
 #include <stdlib.h>

src/config.h.in

@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2016 Andrew Kelley
+ *
+ * This file is part of zig, which is MIT licensed.
+ * See http://opensource.org/licenses/MIT
+ */
+
 #ifndef ZIG_CONFIG_H
 #define ZIG_CONFIG_H
 

src/errmsg.cpp

@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2016 Andrew Kelley
+ *
+ * This file is part of zig, which is MIT licensed.
+ * See http://opensource.org/licenses/MIT
+ */
+
 #include "errmsg.hpp"
 #include "os.hpp"
 

src/error.cpp

@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2016 Andrew Kelley
+ *
+ * This file is part of zig, which is MIT licensed.
+ * See http://opensource.org/licenses/MIT
+ */
+
 #include "error.hpp"
 
 const char *err_str(int err) {

src/eval.cpp

@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2016 Andrew Kelley
+ *
+ * This file is part of zig, which is MIT licensed.
+ * See http://opensource.org/licenses/MIT
+ */
+
 #include "eval.hpp"
 #include "analyze.hpp"
 #include "error.hpp"

src/ir_print.cpp

@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2016 Andrew Kelley
+ *
+ * This file is part of zig, which is MIT licensed.
+ * See http://opensource.org/licenses/MIT
+ */
+
 #include "ir.hpp"
 #include "ir_print.hpp"