crista/exercises-in-programming-style — pull request #17 by smtriplett (2014-01-12 02:24:36+00:00)
Title: Add a check to handle input text with fewer than 25 words.

The final blog in the main program throws an error when the stack is empty. To avoid this, add a check to the while loop for the size of the stack. Stop the loop when the stack has 1 element remaining (the last element will be the count from the last iteration of the loop, not a word).