Error when using example from Mecklenburg book

[Richard Cavell]

   Hello, everyone.  I am attempting to learn GNU Make, and I am indebted
   to those who provide advice.  Thanks in advance.

   I am reading "Managing Projects with GNU Make" 3rd edition, page 29.
   It gives an example of a recipe for a "help" target.  The book is 12
   years old and my OS X installation is 11 years old.

   I have attempted to make this recipe and I am getting strange errors.
   I submit my terminal's output with, I hope, all necessary information.
    I don't understand awk and it is not my intention to learn more about
   that tool right now.

   Since I intend to learn more about make, what can I learn from this
   terminal output?

   Richard

bash log.txt
Description: Text document