Reduce number of RA requests during 'svnsync info'.  (This is the follow-up to r1126441.)
Reduce number of RA requests during 'svnsync info'.  (This is the
follow-up to r1126441.)

* subversion/svnsync/main.c
  (info_cmd): Retrieve three properties using one svn_ra_rev_proplist()
    call instead of requesting them one by one.

Patch by:  Vijayaguru G <vijay{_AT_}collab.net>
Inspired by:  ivan

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