[Minor] lua_util.round: don't round up

diff --git a/lualib/lua_util.lua b/lualib/lua_util.lua
index 81e4cb606d1a0232a0ff63ff56ed990fbd294676..0a824dca14942aa23e48e11715bf738f090b429c 100644 (file)
--- a/lualib/lua_util.lua
+++ b/lualib/lua_util.lua
@@ -27,7 +27,7 @@ end
 -- Robert Jay Gould http://lua-users.org/wiki/SimpleRound
 exports.round = function(num, numDecimalPlaces)
   local mult = 10^(numDecimalPlaces or 0)
-  return math.floor(num * mult + 0.5) / mult
+  return math.floor(num * mult) / mult
 end
 
 return exports