svoid printDiffsBetweenLastSnippetVersions(S snippetID, int maxVersions default 10) {
  L<SnippetVersion> l = textChangesOfSnippet(snippetID, maxVersions);
  S text = loadSnippet(snippetID);
  clearConsole();
  print();
  print("Analyzing " + snippetID);
  print();
  for (SnippetVersion v : takeFirst(maxVersions, l)) {
    printAsciiHeading(snippetID + " text changed " + v.date);
    print(unidiff(v.previousValue, text));
    text = v.previousValue;
  }
}