anchor.diff:  +
   'Posted 2015.05.03. Danila Deliya'
   * p. 47, Horner's Method, the first sentence should begin: The
  -*fifth* line.
  +*fifth* line ...
   +
   'Posted 2015.05.03. Danila Deliya'
   
  
positive.code: 'Posted 2015.04.04. Lam Hin Yan'
  
  == Chapter 17
  
  == Appendix A
  
  
negative.code: +
  'Posted 2015.05.13. Danila Deliya'
  * p. 132, Logging Library, The second sentence of the third paragraph
     in the section should begin:  In this case, the monadic function
     *`(1024*)`* ...
  +
  'Posted 2015.05.13. Danila Deliya'
  * p. 132, Logging Library, The final listing should be labeled +.log.hdr+.
  