[Bug-wget] On any error in header retrieval, destination file is deleted

[Mikael Magnusson]

I've noticed recently that while downloading a file, if there's an
error while retrieving the headers, the subsequent retry loop starts
over from the beginning of the file. This is independent of options
like -c etc since it's just an internal retry of the fetch loop, but I
was using -c too. The same download sometimes errored during download
of data and then retries were correctly continued after the already
retrieved data. It doesn't matter if it's a "connection reset" or
"read error" or "connection timed out", any error followed by "in
headers" wipes the file. I'm using 1.15 (on gentoo, but there's no
patch to the c code).

-- 
Mikael Magnusson