Prevent a private mergeinfo function from accepting invalid input and later tripping a SVN_ERR_ASSERT_NO_RETURN assert.
Prevent a private mergeinfo function from accepting invalid input and
later tripping a SVN_ERR_ASSERT_NO_RETURN assert.

* subversion/libsvn_subr/mergeinfo.c

  (svn_mergeinfo__filter_mergeinfo_by_ranges): SVN_ERR_ASSERT on invalid
   input.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@937461 13f79535-47bb-0310-9956-ffa450edef68

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