THRIFT-4386 Add Lua 5.3/5.4 support
Clint: lua
Patch: Thomas Bruggink

This closes #3012
diff --git a/lib/lua/TSocket.lua b/lib/lua/TSocket.lua
index d71fc1f..47ca6f0 100644
--- a/lib/lua/TSocket.lua
+++ b/lib/lua/TSocket.lua
@@ -17,7 +17,7 @@
 --
 
 require 'TTransport'
-require 'libluasocket'
+local luasocket = require 'libluasocket'
 
 -- TSocketBase
 TSocketBase = TTransportBase:new{