Always upload new files, even if the timestamps match. This is a workaround
for the trouble that DES and I had with MFCs: when "cvs update -jfoo -jbar"
creates a new file, it sets the version to 0 ("new") but sets the timestamp
in the Entries file to the timestamp of the file that's new on the branch.
The CVS client doesn't upload files whose timestamps match with the Entries
file, so these new files don't get uploaded to the server and the server
fails when trying to check them in.

PR: bin/40227
Approved by: peter
MFC after: 2 weeks