message: Use knit + latexmk to compile .rnw files
diff: {
  "name": "Compile Rnw files",
  "tools": [
  - "rnw2pdf"
  + "rnw2tex",
  + "latexmk"
  ]
  }
  ],
  "env": {}
  },
  {
  - "name": "rnw2pdf",
  + "name": "rnw2tex",
  "command": "Rscript",
  "args": [
  "-e",
  - "knitr::knit2pdf('%DOCFILE%')"
  + "knitr::opts_knit$set(concordance = TRUE); knitr::knit('%DOCFILE_EXT%')"
  ],
  "env": {}
  }
  