chore(doc-gen): log comments as silly() rather than info()

Author: petebacondarwin

docs/dgeni-package/services/AttachCommentTreeVisitor.js

@@ -34,7 +34,7 @@ module.exports = function AttachCommentTreeVisitor(ParseTreeVisitor, log) {
 
  // Only store the comment if it is JSDOC style (e.g. /** some comment */)
  if (/^\/\*\*([\w\W]*)\*\/$/.test(commentText)) {
- log.info('comment: ' + this.currentComment.range.start.line + ' - ' +
+ log.silly('comment: ' + this.currentComment.range.start.line + ' - ' +
  this.currentComment.range.end.line + ' : ' +
  commentText);