* subversion/libsvn_client/externals.c
  (svn_client__handle_externals): Use cheaper check for not-versioned.
  (svn_client__export_externals): Use iterpool.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1448345 13f79535-47bb-0310-9956-ffa450edef68