Fix a buglet in svn_repos_node_location_segments() which could cause items to be reported with a truncated history.
Fix a buglet in svn_repos_node_location_segments() which could cause
items to be reported with a truncated history.

* subversion/libsvn_repos/rev_hunt.c
  (struct nls_history_baton_t): New.
  (nls_history_func): Expect a new baton type, and signal bailout if we cross
    the oldest-revision threshold.
  (svn_repos_node_location_segments): When searching for the inaugural
    revision of an object, leave the lower bounds on the revision search
    range wide open and just let the callback function signal early
    termination of the search.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@867539 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion