lua: Add license to the C wrapper

src/lua/src/main.c

+/*
+ * Copyright 2016 GitHub, Inc
+ *
+ * Based on lua.c, the Lua C Interpreter
+ * Copyright (C) 1994-2012 Lua.org, PUC-Rio.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
 #include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -11,20 +36,20 @@
 static lua_State *globalL = NULL;
 static const char *progname = NULL;
 
-static void lstop (lua_State *L, lua_Debug *ar)
+static void lstop(lua_State *L, lua_Debug *ar)
 {
 	(void)ar;  /* unused arg. */
 	lua_sethook(L, NULL, 0, 0);
 	luaL_error(L, "interrupted!");
 }
 
-static void laction (int i)
+static void laction(int i)
 {
 	signal(i, SIG_DFL);
 	lua_sethook(globalL, lstop, LUA_MASKCALL | LUA_MASKRET | LUA_MASKCOUNT, 1);
 }
 
-static void l_message (const char *pname, const char *msg)
+static void l_message(const char *pname, const char *msg)
 {
 	if (pname) fprintf(stderr, "%s: ", pname);
 	fprintf(stderr, "%s\n", msg);
@@ -42,7 +67,7 @@ static int report(lua_State *L, int status)
 	return status;
 }
 
-static int traceback (lua_State *L)
+static int traceback(lua_State *L)
 {
 	if (!lua_isstring(L, 1))  /* 'message' not a string? */
 		return 1;  /* keep it intact */
@@ -62,7 +87,7 @@ static int traceback (lua_State *L)
 	return 1;
 }
 
-static int docall (lua_State *L, int narg, int clear)
+static int docall(lua_State *L, int narg, int clear)
 {
 	int status;
 	int base = lua_gettop(L) - narg;  /* function index */
@@ -77,7 +102,7 @@ static int docall (lua_State *L, int narg, int clear)
 	return status;
 }
 
-static int dolibrary (lua_State *L, const char *name, int clear)
+static int dolibrary(lua_State *L, const char *name, int clear)
 {
 	lua_getglobal(L, "require");
 	lua_pushstring(L, name);
@@ -156,7 +181,7 @@ static int pmain(lua_State *L)
 	return 0;
 }
 
-int main (int argc, char **argv)
+int main(int argc, char **argv)
 {
 	int status;
 	struct Smain s;