The git-cvsimport-script had a copule of small bugs that prevented me
from importing a big CVS repository.
The first was that it didn't handle removed files with a multi-digit
primary revision number.
The second was that it was asking the CVS server for "F" messages,
although they were not handled.
I also updated the documentation for that script to correspond to
actual flags.
Signed-off-by: David Kågedal <[email protected]>