Reduce memory usage of multiple-target commits (part of issue 1635).
Reduce memory usage of multiple-target commits (part of issue 1635).

Patch by: D.J. Heap <dj@shadyvale.net>

* subversion/libsvn_client/commit.c
  (svn_client_commit): Use a subpool in the target-processing loop.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@849023 13f79535-47bb-0310-9956-ffa450edef68

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