[cvsnt] Merging files vs top-level directory

[ncal]

Hi,
   Our team needs to do "patch" relases - the changes they make are
relatively small - not more than 10 files.
   Each developer has been asked to merge the code back onto Main for every
bugfix that they do on the patch branch.
   Do you think it is a good idea for them to choose only the file that has
been modified for the merge i.e, or should they always merge at the
top-level directory?

Thanks!