Improve an error message.
Improve an error message.

* subversion/libsvn_ra_neon/session.c
  (parse_url): Give more details, including the URL itself, in the error
    message when URL parsing fails.

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