Replace self-built words() with .words builtin

Author: paultcochrane

categories/tutorial/01-word-wrap.pl

@@ -17,15 +17,10 @@
     my $count = 0;
     for $tempfile.lines {
         $count++;
-        lines(words($_));
+        lines(.words);
     }
 }
 
-# Split a line into words (array)
-sub words ($in) {
-    return $in.split(/\s/);
-}
-
 # Print words, new line at word wrap, new line for paragraph
 sub lines (@in) {
     my $length = 0;