local modification time for upgrading unzip-5.52_1 in RELENG_4

[Troy]

I recently upgraded unzip on my 5.x machines no problem but when I went
to upgrade the ports in my 4.x boxes, I'm getting the following errors
siting local modification time does not match remote.



===>  Extracting for unzip-5.52_1
=> Checksum mismatch for unzip552.tar.gz.
===>  Refetch for 1 more times files: unzip552.tar.gz
===>  Vulnerability check disabled, database not found
=> unzip552.tar.gz doesn't seem to exist in /usr/ports/distfiles/.
=> Attempting to fetch from ftp://ftp.info-zip.org/pub/infozip/src/.
fetch: unzip552.tar.gz: local modification time does not match remote
=> Attempting to fetch from
ftp://ftp.funet.fi/pub/TeX/CTAN/tools/zip/info-zip/src//.
fetch: unzip552.tar.gz: local modification time does not match remote
=> Attempting to fetch from
ftp://ctan.unsw.edu.au/tex-archive/tools/zip/info-zip/src//.
fetch: unzip552.tar.gz: local modification time does not match
remote