Thanks Paul. Paul Eggert wrote:
+@node Reproducibility +@section Making @command{tar} Archives More Reproducible + +Sometimes it is important for an archive to be reproducible, +so that one can be easily verify it to have been derived solely from its input.
I think that in the last line above the 'be' shold not be there: "so that one can easily verify it to have been derived solely from its input."