While checking out files the server sends messages to the CVS
client which provide information about the state of file paths.
Our custom CVS client implementation needs to recognize a few
additional responses the server may send while checking out a
different version of a file which was already checked earlier.
Otherwise our client will error out. We can simply ignore the
messages (and its 2 paths arguments separated by \n) because
we do not manage an actual CVS working copy.
Found while testing ingestion of the GNU dino repository at
cvs.savannah.gnu.org/sources/dino