This was causing a podcheck error
Low level micro optimization of C<L</SvGROW>>. It is generally better to use
C<SvGROW> instead. This is because C<SvPV_renew> ignores potential issues that
C<SvGROW> handles. C<sv> needs to have a real C<PV> that is unencombered by
-things like COW. Using C<L</SV_CHECK_THINKFIRST>> or
-C<L</SV_CHECK_THINKFIRST_COW_DROP>> before calling this should clean it up, but
+things like COW. Using C<SV_CHECK_THINKFIRST> or
+C<SV_CHECK_THINKFIRST_COW_DROP> before calling this should clean it up, but
why not just use C<SvGROW> if you're not sure about the provenance?
=cut