Update core.c

src/lua-lxc/core.c

@@ -381,15 +381,15 @@ static int container_attach(lua_State *L)
     struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
     int argc = lua_gettop(L);
     char **argv = NULL;
-    int i,j;
+    int i;
 
     if (argc > 1) {
 	argv = alloca((argc+1) * sizeof(char *));
-	for (i = 0, j = 0; i < argc-1; i++) {
+	for (i = 0; i < argc-1; i++) {
 		const char *arg = luaL_checkstring(L, i+2);
-		argv[j++] = strdupa(arg);
+		argv[i] = strdupa(arg);
 	}
-	  argv[j] = NULL;
+	argv[i] = NULL;
     }
     else
     {