Fix syntax in exercise 17_03

Author: multimentha

chp17_strings/exercise_17_03_equals/exercise_17_03_equals.pde

@@ -5,7 +5,7 @@
 // Exercise 17-3: Find the duplicates in the following array of Strings.
 
 /*
-String words = { "I" , "love" , "coffee" , "I" , "love" , "tea" } ;
+String words[] = { "I" , "love" , "coffee" , "I" , "love" , "tea" } ;
 for (int i = 0; i < ______________; i ++ ) {
   for (int j = _; j < ______________; j ++ ) {
     if (___________________) {