ns |bool |need_utf8 |NN const char *pat|NN const char *patend
ns |char |first_symbol |NN const char *pat|NN const char *patend
sR |char * |sv_exp_grow |NN SV *sv|STRLEN needed
-sR |char * |bytes_to_uni |NN const U8 *start|STRLEN len|NN char *dest
+snR |char * |bytes_to_uni |NN const U8 *start|STRLEN len|NN char *dest
#endif
#if defined(PERL_IN_PP_CTL_C) || defined(PERL_DECL_PROT)