On move-tracking-2 branch: fix a pool lifetime issue similar to r1690654.
On move-tracking-2 branch: fix a pool lifetime issue similar to r1690654.

* subversion/svnmover/svnmover.c
  (commit): Allocate subpool from svnmover_wc_t pool.


git-svn-id: 486ec3464084f62cfe8608152673c827b947faa2@1713637 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion