Fix an alignment problem on machines with 32 bit pointers but atomic 64 data access that may not be misaligned.
Fix an alignment problem on machines with 32 bit pointers but atomic 64
data access that may not be misaligned.

* subversion/libsvn_ra_svn/marshal.c
  (read_item): Ensure that the array contents are always have the APR
               default alignment.

Found by: Rainer Jung <rainer.jung{_AT_}kippdata.de>

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1694533 13f79535-47bb-0310-9956-ffa450edef68

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