Spec here meant syn; document current state

Author: coke

doc/Language/5to6-nutshell.pod6

@@ -1267,15 +1267,11 @@ Unchanged:
 
 =head3 C<-a>
 
-Unchanged in the Spec, but not yet implemented in Rakudo.
-
-For now, change your code to use C<.split> manually.
+Change your code to use C<.split> manually.
 
 =head3 C<-F>
 
-Unchanged in the Spec, but not yet implemented in Rakudo.
-
-For now, change your code to use C<.split> manually.
+Change your code to use C<.split> manually.
 
 =head3 C<-l>