Follow-up to r1149228: Add some comments describing the optimizations for issue #3966 'log_noop_revs is far too slow'.
Follow-up to r1149228: Add some comments describing the optimizations for
issue #3966 'log_noop_revs is far too slow'.

* subversion/libsvn_client/merge.c

  (log_noop_revs, remove_noop_subtree_ranges): Document the requirement that
   the svn_log_entry_receiver_t receiver must be invoked from oldest to
   youngest revision.

Suggested by: gstein

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