Fix up comment length and text, and generate public/

examples/generics/generics.sh

@@ -2,6 +2,6 @@ $ go run generics.go
 keys: [4 1 2]
 list: [10 13 23]
 
-# Note: The order of iteration over map keys is not defined in Go,
-# so different invocations may result in different orders.
-# The output need not necessarily be keys: [1 2 4].
+# Note: The order of iteration over map keys is not
+# defined in Go, so different invocations may
+# result in different orders.