refactor to_bits

md5.lua

@@ -100,15 +100,12 @@ else
     -- to bits table
     local tbl = {}
     local cnt = 1
-    while (n > 0) do
+    local last
-      local last = math.mod(n,2)
+    while n > 0 do
-      if(last == 1) then
+      last      = n % 2
-        tbl[cnt] = 1
+      tbl[cnt]  = last
-      else
+      n         = (n-last)/2
-        tbl[cnt] = 0
+      cnt       = cnt + 1
-      end
-      n = (n-last)/2
-      cnt = cnt + 1
     end
 
     return tbl