chg p6 to raku

Author: tbrowder

doc/Language/nativecall.pod6

@@ -1046,7 +1046,7 @@ C<inet_ntop> which returns a C<char *> given a buffer with the C<addrinfo>.
 Putting all these together, leads to the following program:
 
 =begin code :solo
-#!/usr/bin/env perl6
+#!/usr/bin/env raku
 
 use v6;
 use NativeCall;