Update hf_mf_uidbruteforce.lua

Fixed issue with how the command is run, old version is invalid as it is missing the -t

client/luascripts/hf_mf_uidbruteforce.lua

@@ -124,7 +124,7 @@ local function main(args)
         local c = string.format( command, n )
         print('Running: "'..c..'"')
         core.console(c)
-        core.console('msleep '..timeout);
+        core.console('msleep -t'..timeout);
         core.console('hw ping')
     end