Fix bug: Use of log with limit against a pre-1.3.x svnserve which does not support limit renders the RA session unusable for future commands.
Fix bug: Use of log with limit against a pre-1.3.x svnserve which does not
support limit renders the RA session unusable for future commands.

* subversion/libsvn_ra_svn/client.c (ra_svn_log):
    Unconditionally read the command response.

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