Tidy up, make line numbers consistent with text

17-introspective/tf-17.py

@@ -39,7 +39,7 @@ def sort(word_freq):
 def main():
     word_freqs = sort(frequencies(extract_words(sys.argv[1])))
     for (w, c) in word_freqs[0:25]:
-        print(w, ' - ', c)
+        print(w, '-', c)
 
 if __name__ == "__main__":
     main()