Prior to this fix, if '/tmp' were *not* a working copy and /tmp/abc existed as a directory, then running 'svn mkdir --parents abc' from within '/tmp' would delete '/tmp/abc'.  The fix is to delete '/tmp/abc' upon failure only if this command had created it in the first place.
Prior to this fix, if '/tmp' were *not* a working copy and
/tmp/abc existed as a directory, then running
'svn mkdir --parents abc' from within '/tmp' would delete
'/tmp/abc'.  The fix is to delete '/tmp/abc' upon failure only if
this command had created it in the first place.

* subversion/libsvn_client/add.c
  (svn_client__make_local_parents): Delete path upon failure
   only if this invocation has created it.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@871005 13f79535-47bb-0310-9956-ffa450edef68

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