Add description comment.
Add description comment.

* subversion/bindings/swig/core.i
  (struct apr_pool_t): Fix case.
  (%extend apr_pool_t): Add description comment.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion