SIZE criterion in distinfo

[Marc van Woerkom]

Hi porters,

I just see there is a new criterion in distinfo:

   root at oranje# cat distinfo
   MD5 (xcdplayer-2.2.tar.Z) = d5d1d86abc4a0f5e2ea99a40ee63f98d
   SIZE (xcdplayer-2.2.tar.Z) = 89435

May I ask the rationale behind adding SIZE?

According to

   http://www.faqs.org/rfcs/rfc1321.html

("3.2 Step 2. Append Length") the size of the input data
is used in the calculation of the MD5 hash.

In other words, if a fetched file has a different file length,
than the original file, it will for sure have a different MD5
hash.

So what is the benefit to have that SIZE checked?

Regards,
Marc