Use the exact formatting suggested in COPYING file.
This change is basically a pretext to trigger a new clean build in
order to check if Coverity is capable of accepting new builds for
analysis finally.
DOSBox maintainer expressed a concern about mail being stored verbatim
in the source code. SourceForge does not forward messages to the
real mailing addresses by default, therefore it's rather pointless to
target them for spamming nowadays, but git-svn can easily take input
from as script, so let's just replace the static file.
Upstream svn/trunk just introduced a bunch of new warnings.
Piggy-back change to interpret "From:" lines in SVN to be imported as
proper authorship information.
The script creates new Git repository with complete SVN history of
DOSBox project, using correct authorship information and importing tags
as real Git tags.
