if we want to override system function in lua we should do so from mod_lua, not…

if we want to override system function in lua we should do so from mod_lua, not hack the lib.  We did the same thing for exit.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@9661 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/languages/mod_lua/lua/loslib.c

@@ -36,7 +36,7 @@ static int os_pushresult (lua_State *L, int i, const char *filename) {
 
 
 static int os_execute (lua_State *L) {
-  lua_pushinteger(L, switch_system(luaL_optstring(L, 1, NULL), 1));
+  lua_pushinteger(L, system(luaL_optstring(L, 1, NULL)));
   return 1;
 }