Convert libsvn_subr/mergeinfo.c over to svn_rangelist_merge2().
Convert libsvn_subr/mergeinfo.c over to svn_rangelist_merge2().

* subversion/libsvn_subr/mergeinfo.c
  (parse_revision_line): Use svn_rangelist_merge2() instead of
    svn_rangelist_merge().
  (svn_mergeinfo_merge): Same, and pass an iterpool as the scratch_pool
   for svn_rangelist_merge2().


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1149557 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion