untrusted comment: verify with /etc/ports/r4-modules.pub
RWQ2oTreAss89Pepw/WHv51fidydyGw9EIVb3J6LpKhK58Uj4rndNxmbHcvL/5mBNL8TLXjoN0emBdw2L30JkmW8j3Jn4XdBfAo=
SHA256 (Pkgfile) = 7a863530b828e207064d1cd2f0997451a4ce3bf2e3afe3d6eb4ed4eff82bfee0
SHA256 (.footprint) = b4d108901cdd505b50617da029eab450c29d1d7a8fb4d090f70b31700dbeb900
SHA256 (knitr_1.49.tar.gz) = 2952c579654649387e0020f4033a70ea838e55ab04a188e0baf592f09e98a2d3