Fix issue #2586.
Fix issue #2586.

* subversion/libsvn_client/add.c
  (mkdir_urls): Early exit when there is a mix of URLs and local paths.

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