when returning undef just return &PL_sv_undef instead of the confusing   SvREFCNT_inc(mp_xs_APR__Pool_2obj(parent_pool)); which eventually leads to the same thing
when returning undef just return &PL_sv_undef instead of the confusing
  SvREFCNT_inc(mp_xs_APR__Pool_2obj(parent_pool));
which eventually leads to the same thing


git-svn-id: b4be4a41b2a3352907de631eb6da1671a2f7b614@159348 13f79535-47bb-0310-9956-ffa450edef68

Distrotech/mod_perl,Distrotech/mod_perl,Distrotech/mod_perl,Distrotech/mod_perl