Small performance improvement in a few specific 'svn status' scenarios.
Small performance improvement in a few specific 'svn status' scenarios.

* subversion/libsvn_client/status.c
  (tweak_status):
    Don't copy the wc status if we can just tweak the client status.

    Don't retrieve the changelist for every node, when we already have it
    available.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1095359 13f79535-47bb-0310-9956-ffa450edef68

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