fix error when adding if

md5.lua

@@ -193,21 +193,21 @@ else
       return bit_and(n, 0xFFFFFFFF)
     end
   end
+end
 
-  -- convert little-endian 32-bit int to a 4-char string
-  local function lei2str(i)
+-- convert little-endian 32-bit int to a 4-char string
+local function lei2str(i)
   local f=function (s) return char( bit_and( bit_rshift(i, s), 255)) end
   return f(0)..f(8)..f(16)..f(24)
-  end
+end
 
-  -- convert raw string to big-endian int
-  local function str2bei(s)
+-- convert raw string to big-endian int
+local function str2bei(s)
   local v=0
   for i=1, #s do
     v = v * 256 + byte(s, i)
   end
   return v
-  end
 end
 
 -- convert raw string to little-endian int