If downloading to a temporary file, set the timestamp on the temp file, not on the file we're replacing.
If downloading to a temporary file, set the timestamp on the temp file, not
on the file we're replacing.

PR:		bin/34992
Submitted by:	Shunichiro Ariura <syun1rou@blackshell.org>
MFC after:	1 week

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase