Remove an unnecessary tmp variable.
Remove an unnecessary tmp variable.

* tools/cvs2svn/cvs2svn.py
  (CollectData.set_revision_info): Remove branch_name variable in
    favor of inline call.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@848674 13f79535-47bb-0310-9956-ffa450edef68

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