Fix leaking global (#3668)

It's unsuded anywhere outside this file

Author: Astralcircle

lua/entities/gmod_wire_expression2/core/find.lua

@@ -322,7 +322,7 @@ end)
 
 --[[************************************************************************]]--
 
-function query_blocked(self, update)
+local function query_blocked(self, update)
 	if (update) then
 		if (self.data.findcount > 0) then
 			self.data.findcount = self.data.findcount - 1